I don't see where the OP will have a problem. I mean, Obama has a goodwill, free plan for everyone. I'm sure some GM dealership gets paid 3000 dollars just to tell you it's not covered....
Seriously, I do have a suggestion for the OP. IF you don't get anywhere and you just decide to say "fuk it", then at least do the trans upgrade.
The 65's not only work better than the 60's, they are a decent deal price-wise compared to some of the bulletproof trannys out there.
Good luck... I personally don't have the time nor patience that others have to keep fighting GM.
Mark