When my community banned them, the police were only able to offer a single vehicle theft case as positive evidence, but the data was being sent to police stations and locally unpopular federal agencies clear across the country. We could have spent the municipal budget on giving the victims a new car with far fewer privacy concerns and still saved money.
Person reports car stolen, cop adds car info to plate reader most wanted list, most wanted list is transmitted to cameras, cameras don't let plate readings leave RAM unless they're 90% or higher confident that it's on the most wanted list.
I do wonder what they do on busy interstates though. Some of the ones I've had to go past would basically be sending a live video feed - LPR matches as text would save a ton of bandwidth and maybe even power compared to a cellular radio always transmitting.
If you live in a community that can't police, then sure, flock is your answer. Everyone is under surveillance now. Except you are innocent until proven guilty. Video evidence is becoming less and less credible due to AI. It's a slippery slope. I would rather police be trained to look for clues and do actual police work than wait for a "ping" on some automated system that they check from their computer desk.