In the US, a traffic ticket is an indictment of a crime (says it on the ticket. I wish I didn't know that fact).

That means that you have a right to trial/appeal, and the accuser (the cop) needs to show up, if you request a trial.

Traffic cameras can't accuse you of a crime, so they are considered civil infractions (no points, but also means they are a bitch to appeal). They can issue realtime civil citations, though.

ALPRS can't do either. They are forensic tools; not enforcement tools.

I believe in the UK, a camera can convict you of a crime, so they can issue severe tickets. They wouldn't really be able to do that, in the US.

In my county (Suffolk, NY), they just stopped all the redlight cameras. I doubt they would do so for ALPRs.

Also, I think some ALPRs are private. There's a shopping center, not too far from here, that's in a relatively high-crime neighborhood. They have cameras and ALPRs, all over the parking lots.