> make it seem like the participants have access to some sort of ALPR data to track vehicles

The whole reason cops love ALPR data is anyone's allowed to collect it, so they don't need a warrant.

The government falling victim to ALPR for once might actually be the push we need to get some reform. That said, they'll probably try to ban it for everybody but themselves. Never before have they had such comprehensive surveillance and I don't expect them to give it up easily.

It’s probably illegal for a state law enforcement official (presumably) to share it with randos on the internet though.