alt Hacker NewsSCOTUS has (sort of) done this in the recent Chatrie case. https://www.supremecourt.gov/opinions/25pdf/25-112_0am4.pdf
It's obviously different in that Chatrie was about google location data, and there actually was a warrant. SCOTUS ruled that warrant was too broad since it captured everyone in that location, not a specific person(s).
Constitutional scholars have pointed out the ALPR are next in line to face challenges based on the same principles as Chatrie - LEO can get a warrant for a specific person(s) to search but cannot search the entire universe.
That would not prevent ALPRs from existing, but it would require a warrant to search them. Which seems reasonable and completely in line with the 4th amendment.
Edit: words/spelling
OK sure, but do they now also need a warrant to look at their own footage from their body cam, or their dashcam? What about the camera on the side of the municipal building?
Compelling parties to give up data is different than looking at your own data. And it is firmly established that recording and reviewing footage in public space is totally fine.
So we are back to square one...How do we define scale such that a police camera on a police car is OK, but a police camera on every corner is not. Or that individuals can record in public but police cannot.