@ehBeth,
Thanks. If it's military, AIT can be either Advanced Infantry Training, or Advanced Individual Training. Back in the day, I used to proofread special orders, but HBL wasn't one of them back then.
No idea about the driving question, either. I would say if one has a license in any of the 50 states, it's fine to drive. If not, military service confers no such privilege by itself.