My city has a contract with Flock, but the rest of their tech “stack” is Axon based. I’ll be surprised if they don’t change ALPR to Axon at first chance.

In fact they are probably already using Axon ALPR in their police vehicles. That technology has existed for a while, even before Flock's fixed cameras became widespread.

I find it slightly less objectionable, as the chances that I drive by Flock's cameras every day are nearly 100% but the chances that I'm within visual range of a police car are much lower and more random.