Stone_Blue
Adventurer
In the USA I'm certain nobody would know either way. A US traffic cop will have no idea what the letters on your license entitle you to, and most likely wont care.
I dont remember whether California CHP has them, but in NY, there are State Police units driving the expressways, solely dedicated to stopping, inspecting, and ticketing (if needed), commercial, heavy, and even light/passenger, trailered vehicles right there along the expressway...I believe they even have portable scales....So while driving rural state roads, or inner city surface streets, you may get an officer that doesnt know the ins-and outs of the regulations, driving the expressways is another matter.