If you have enough time, call up your home-state registry of motor vehicles and see if you can pay to have them fedex a new ID to your hotel. While you do not have to have an ID to fly in the US, it would certainly simplify your airport ordeal if you had an ID. Alternatively, you could ask someone back home to FedEx you your passport. Since many people don't travel domestically with them, you could have left yours at home.