Just about every day on the way to work I get behind a white van that is marked as bus (has lights on the roof). It takes forever for the kids on this bus to get on and we wait while the parents buckle them in. Does the MA laws about passing a school bus apply to this kind of a van? I have seen other cars drive right by even thought the lights are flashing and I would love to get by the bus so I'm not late for work. What do you think?