or, "where else across all the databases has this particular vehicle been seen?"

They claim it's not "live surveillance." but that is implying that you think it's NOT OK if someone is sitting there watching the camera feed, but that it's somehow OK if the camera logs ALL vehicle motion, ALL vehicle attributes, AND CORRELATES ALL movement by any particular vehicle in the future. 

Law enforcement is trying to convince you that something a million times worse of a privacy violation is actually good and not a violation at all. They juxtapose a straw man that no one would care about and say how this system is somehow OK because it logs everything to a super fast database?!?