So, funny story...I went to the apple store at 29th St today and talked to the manager, showed him the letter, and he basically said he would like to sell me the phone tomorrow, but there's some AT&T policy (NOT an apple policy) where the credit card holder has to be there...something about signing up or changing plans and credit checks or something. Anyway, I walked like 5 stores down the mall to the AT&T store and asked them, and guess what? He said it wouldn't be a problem at all.
Looks like I'm headed there tomorrow morning.