What seatpost were you using? I'm curious here, I ride a Rush as well, and I'm 225+ gear. I custom built my bike to handle my size though, run a Thomson seatpost that I left long, custom wheels with King hubs, ect.
I was using the stock Kalloy post...and I'd recommend keeping yours if you have it, I'll explain why down below. Mine has nearly the curvature of a banana now
So here's my update, I called back to the service dept and now I'm speaking to a 2nd tech...before I could really explain how the story of how my seat tube was bent I was cut off "...I have to say, this looks suspicious...normally when we see this it's because people have a roof rack and drive into the garage with the bike still up there..." OK so my blood is now boiling, I can see their angle now and I don't even own a roof rack. I guess I have to explain a little more of the story. After bending my seat post I ordered a replacement...Race Face Evolve XC. When the new post arrived I took my seat off to put it on the new post. When installing the new post that's when I came across the ripple/crease/curve in my seat tube. So I called up the service dept and they said I needed to bring it in.
So I ended up bringing the bike with the bent seat post, no saddle, into the service dept, this was on Tuesday. The tech advised me they needed the saddle as well to diagnose the issue...fair enough. I told them I had the saddle at home and would bring it in the next day (Wednesday...today). I guess this raised suspicion, especially if they were thinking from the get go the damage was caused from negligence or abuse. They probably thought I left the saddle at home because there was evidence of a significant crash.
Anyway, I guess that's why the tech was "suspicious" today. I was pretty offended at first because that's not good customer service in my mind...so yeah, you guys probably know what LBS I was at by now....anyway, I've worked retail before, I know there's a lot of dishonest people out there so I sucked it up and tried to see things from their point of view. Fortunately I had just purchased a helmet cam and I was filming when the incident happened...I mentioned to this to the tech and it didn't seem to matter. He took the stance "it's up to the c'dale rep, it's just paper work for us..."...(it impacts c'dales pocketbooks not ours) ...OK, so why the "this looks suspicious remark"? I dunno, maybe he was just preparing me for the worst case scenario. I convinced myself it's no big deal and tried to remain indifferent, my claim hasn't been denied yet so no point in getting frustrated. Oh yeah...he also said that the saddle I gave him wasn't the stock saddle...well the stock saddle felt like sitting on a rock so yeah I replaced it with something that had some cush. But I'm sure this only added to his suspicions, he's probably still thinking the stock seat shows evidence of a garage impact. So slowfatguy, this brings me to the point about keeping your stock seat post. I have no doubt in my mind that if this all happened with an aftermarket seat post they would have said that the failure and bending of the aftermarket seat post caused enough leverage to damage the seat tube. Now, most likely the Thomson seat tube you have is significantly stronger...in that case I'm sure the angle would have been "well you see, the frame bent because your aftermarket seat post didn't have enough give/flex and therefore the frame failed.....by design the seat post would have failed because it's weaker and cheaper to replace than a frame....yada yada, your seat post wasn't designed for this bike". I'm almost certain I would have been given some heartache about it. So save yourself the headache and keep your stock components....not on your bike, but in an easily accessible place. Now that I have purchased an after market seat post I guess I need to get some kind of waiver from them saying it's OK to use...kinda silly, why do the bike stores sell all those nifty high-end upgrades if you can't use them without voiding your warranty...oh I know the answer...so you can put a $150 seat post on your $99 huffy....riiiiiiight
A little later the tech called me back and said he needs the c'dale rep to physically come and inspect the bike and it might not happen until next week....but he did say that he went ahead and ordered a frame for me. I was happy to hear about that and it changed my whole perspective on the situation.
Now that I've had time to reflect on everything, if push comes to shove I'm sure an engineer would be able to determine the ripple and bend in the seat tube was caused from a vertical force as opposed to a lateral force (implying roof rack+mounted bike vs. garage). The thing is, if I had driven my bike into the top of my garage, the ripple would have been on the forward facing side of the seat tube, my ripple/crease is on the rear...furthermore, the crease in the seat tube was down lower than the point were the seat post stopped in the seat tube. And there's not really any way to fake that, because now that I have a banana shaped seat post, you can't physically shove it into the seat tube far enough down to where the ripple is....hopefully this will resolve any doubts they have. So I'm not gonna sweat it...yet.