Collector Plate Rules

Maybe you guys can solve an argument Terry and i are in...he swears up and down that you are only allowed to put 2,000 miles per year on a car with collector plates according to Minnesota state law. I googled collector car rules and all I can find for rules with owning a collector car is you have to reside in the state you have your car registered as a collector and you have to have a second car with regular plates. He insists that in 1999, one of the local cops pulled him over, wrote down his mileage and told him that about the 2,000 mi. and informed Terry that he will be pulling him over later to make sure he doesn't go over the mileage. I think it is all a bunch of B.S. otherwise shows wouldn't be encouraging people to drive their collectors with longest-distance travelled trophies.