Fresh from Reddit, here's a photo of A.J. McCarron's SUV in what appears to be this parking lot behind Bryant Hall. The submitter says McCarron was one of four football players whose cars got clamped, since they didn't have a parking pass for that particular lot.
There's no pic of McCarron himself, but we've seen that license plate before, and we know he goes to Southern Customs for all his vehicular needs, so yeah, that's him. Maybe Katherine Webb can help him pay for it.