That really sucks. But I have to say, this is the original dealers issue. Conte has no idea what the other dealer did, and if GM sees the paint was touched they will deny coverage. I would talk to the dealer in Buffalo and see if you can take it to a local body shop to get it fixed and have them send you a check for it.
I live up in Westchester and did not go with that dealer for exactly that reason. If you had an issue after delivery you have to now go crazy.
I think doing it the way I mentioned above is your best bet. If you need a body shop on LI, I use Newbridge auto body. Call and ask for Vinnie, tell him Paul with the SIlver Camaro sent you. My car is there right now for a slight front end fender bender I had.
Good Luck, go after the original dealer!