I think it is a pretty easy check/fold. What exactly did you put your opponent on at the turn that you were beating? You bet strongly enough at the flop that he probably had to call you with at least a T or a flush draw with 2 overs, of which one would very likely be an A. Also, your more than pot-sized all-in looks a little suspect and will only be called by a better hand a large percentage of the time.