Dude, there's no employee/retiree going to jeapordize their own discount program just so you can save another couple of grand. If they get caught abusing the program, it'll get yanked right out from under them, AND they'd be responsible to pay back GM for the difference. I don't see that happening.
I'd be thankful you're getting a supplier discount. Some dealers are still asking for over MSRP.
I know it sucks, but that's how it goes. Good luck with your purchase, though.
2010 2SS/RS Auto, Sunroof, Engine Cover. Transformer Edition package.
2013 ZL1 ragtop #5478. 1 of 54 CRT M6 'verts.