Hmm.... did you happen to listen to the conversation? Just before he runs over the cops toes, the cop said "don't talk to me like that I'm just trying to do my job" and the guy responds "F#$% you" to the officer, then runs him over.
I don't care if you have two good legs, one leg, or in a wheelchair. You talk like that and do what he did, he deserves what's coming. Just because you are in a chair, doesn't give you the right to be an ass to Law and expect nothing to happen just because you are in a chair.
Hell, that guys lucky Travishunter3006 didn't respond to the call.