My wife was driving in the carpool lane with our infant daughter asleep in a car seat covered by a blanket to keep the sun off of her.

A cop pulled her over for illegal use of the carpool lane. It's a completely understandable error since the car appeared from the outside to have only one occupant.

The point is that errors happen with all methods of enforcement. But when we talk about automated systems, somehow the standard is set much higher, so even one driver falsely accused is too much.

Since the tradeoff to minimizing false positives is greater injury and death, it matters that we get it right.