ROTC would be your best bet. Your college grades are used for the pilot selection board. Go to AFROTC.com and you can find your local detachment contact info. Get all the information you need from your local det, as you will be surprised on the opportunities still available to you. ROTC is the BEST way to attain a pilot slot in the air force. I took this route myself and I start pilot training in on 8 Jan.

Good luck,

Joseph