On the Route 1 Velo yahoo group, one rider reports that he and some others were biking out MacArthur Boulevard towards Great Falls when they were pulled over by Montgomery County Police. They weren't ticketed, but their names were recorded and they were let off with a warning. One problem is that it doesn't appear that the cyclists were told which law they had violated, only that cyclists in the areas were "getting annoying." The same rider reported that other groups had the same experience. Was anyone was else stopped in this manner? Was anyone given a better explanation?