Maybe you don't know this, but tractor-trailer drivers are required by federal law to have one state CDL driver's license, and one state medical card, and are held to higher standards by the police. A big-rig that speeds ten miles above the posted 65mph speed limit on route 93 will most definately get stopped and ticketed. How long does it take for a speeding violation to disappear from a CDL licensee? It takes 15 years. The trucker's CDL license is their job and livelihood.
A speeding trucker is an unemployed trucker!