Last month I was on a drive with DFW Auto Club. We had 2 groups of about 10 cars each. As we were coming out of Van Alstyne, a DPS trooper parked on the side of the road with radar blarring pulled over the last guy in line for no front plate after watching the first 8 cars go by (only 2 of which had front plates). The guy got a warning (and separated from the group). I guess it's a power/control thing.