Rust inside near 3rd brake light?

So recently I noticed one little rust spot coming through over the back window, 12" left of the 3rd brake light. I don't have any current warranty for rust and after it being 9 years old I contacted Toyota anyway, to see if they would help anyway. And "sorry but no" was the answer. Clearly the rust came from their 3rd brake light seal leaking. I had an Avalanche before this truck that GM paid for rust through 9 years after from their luggage rack, so I hoped toyota would feel the customer dedication to do so. But no. You don't see rust on 2013 vehicles anymore! But guess what, I bought the one that does! Anybody else? Did you get toyota to pay for it? It's a shame considering thetruck looks this nice!

 

I have same issue with my 2007; how did you get yours resolved?