I know! This can be really aggravating. Most company trucks have a governor on them which makes them only allowed to go a certain speed, one company my husband drives for on is only allowed 64 mph.. where the speed is 70-75 in some places! People need to realize that "Big Trucks" aren't out to get them and MOST do know what they are doing or they wouldn't be on the road. In fact, most Truckers are nice enough to get over a bit to allow you to come around...