That is just a nostalgic relic of the past. When a professional driver needs my help to operate safely it is time to get off the road. My brother is a trucker and there are several others in my circle of friends and acquaintances, and to a man they hate RV,ers with every fiber of their being. We are either slow and in the way,or driving on the ragged edge with barely adequate equipment. There are way to many wanna be truckers driving an RV. You are not a trucker and never will be,you do your thing and let them do theirs. I don't do it don't expect it.
One other thing,when you pull into an angled rest area slot,DO NOTmatch front bumpers with the semi next to you. Match back bumpers so they don't whip into a spot and find you 15 feet in.