Civil law generally doesn't allow for imprisonment. Laws where violations are considered infractions are called petty violations for a reason -- they're very minor, and tying up the criminal justice system with them would be a waste of resources.
I'm not quite sure what the rest of your argument is. It's a traffic infraction whether there's a cop at your window writing out a citation or a cop at a computer reviewing photos. It's the same alleged violation of traffic law; the major difference is that in one case the evidence is usually based on the observation and memory of the citing officer, and in the other, there's photographic evidence. In both cases, the office involved would have to testify if you insisted that it go to trial. In some states, you can get a jury trial no matter how trivial the offense, though if you lose, you may risk getting hit with court costs.
Slowly and surely the unix crept up on the Nintendo user ...