The serious answer to this is a sort of echo of the root comment in this thread. Our legal system incorporates the understanding that laws can only be partially enforced. Imagine if robots in the sky automatically cited you for every single infraction. How often do you cross the street outside of a crosswalk? Exceed the speed limit by 1mph? Fail to signal a turn? Drive a block or two without fastening your seatbelt?
Yeah, rolling through a stop at 3mph in the middle of nowhere probably isn't great, but it's not what folks hand in mind when they created the penalties for running red lights. An officer probably wouldn't have bothered to make the stop. But in a world where law enforcement is automated, 99.9% of citations will be these marginal cases.