&quot;After all, drivers do not have a reasonable expectation of privacy over their publicly-visible plate number while driving down public roads.&quot;<p>Random people can see my license plate but they don&#x27;t know who I am. Today only people who know my license plate AND happen to see it randomly know I&#x27;m there at this moment, which is a reasonable expectation of privacy for me.<p>Now if there was a website where you can query a partially complete trip history of any license plate completely void that privacy. Think about such a tool in the hands of a paparazzi for instance...