You realize the law can just make shit up, right? It’s very easy to make a law that says “ALPR data needs a warrant” without impacting the ability of people to record in public. You just need to clearly define ALPR, which isn’t hard.
What is the difference between a security camera watching the municipal tools shack entrance and the security camera watching the main road?
The ultimate goal is to not have a massive database of everything that happened everywhere going back forever. So it even extends far beyond just reading license plates.