They used to do this when red light cameras were popular in California. You could just write a letter saying the person in the pic wasn't you. As long as the ticket is tied to a driver you can basically get away with it via this route.

If the ticket is for the vehicle owner then yes I could see this working. Perfect for emissions violations and vehicle code violations. You could also double-check for stolen license plates as it should be fairly easy to automate the detection of most car makes/models as long as the car hasn't been heavily modified.