I think I can see the smoke rising from Joe C. all the way from here. The case is U.S. v. Yang, in Nevada. TheNewspaper.com reports:
The courts place limits on the ability of police to monitor motorists through GPS devices, but officers can now obtain an even more detailed travel history report on every driver in an area using license plate cameras (ALPR, also known as ANPR in Europe). Under a federal court ruling last week, no warrant is needed to conduct a large scale surveillance operation with ALPR.
Such cameras were key to an April 2016 investigation of mail being pilfered from a post office in Las Vegas, Nevada. Postal inspectors used normal cameras to record a man in a GMC Yukon “fishing” through the affected mailboxes. That is, he dropped a string with adhesive material into the box so that he could pull the letters out. Jay Yang rented the Yukon seen in the video.
Read more on TheNewspaper.com