You have an expectation of privacy in location data that reveals your movements in the physical world, and even short-term surveillance of these movements is a search subject to the Fourth Amendment, the U.S. Supreme Court ruled today in Chatrie v. United States. The case involved geofence warrants...
Calling Flock “ALPR” is dangerously misleading. They track faces, phones, wireless headphones, smartwatches, clothing/outfits, distinctive scrapes and dents on cars, and more.
It’s how it’s marketed to the public, though I do not disagree.