If you don't actually reside in the US anymore, I'd suggest you have a chat with the person at your university's funding office who deals with international students. You'll need to have a good relationship with that person, anyway, as he or she will be your gateway to any money.
The funding rep at my uni was an immense help. She replied to my first list of questions, which I sent right after I accepted the uni's offer, with a whole package they had prepared for US students, explaining in all sorts of detail the process we'd be going through.
Sorry I can't give you more help than that, but your situation seems to be quite unique and I have no idea what the implications are.