I suspect all of us were a little intimidated by our coaches when we first started driving them and we allowed others to perhaps make us feel guilty if we were in their way. Down hills, or as Okie says through construction zones or anywhere someone acted like we were an impediment to progress.
But time and old(er) age have a way of allowing us to drive as we choose with less concern about what some truck driver thinks.
We learned a long time ago some truckers don't like us, and a few will go out of their way to express how they feel, either on a CB or through their actions. It is no mistake when a truck passes and then brings his rig back into my lane with a few feet to spare. It is clear when some jerk with a big CB announces for all to hear how he wants motor homes off his highway. So my advice to folks who are relatively new owners and driver's of coaches to ignore the rest of the world and drive safe. They will eventually pass and get over it.
I do know on a couple of occasions each year a trucker will pull some bone headed stunt either because he is stupid or inattentive. I rarely touch the mike on my CB, but when I get incensed I usually express myself fairly clearly about how stupid that stunt was and then I let them know I have a dash cam with their activity fully recorded. It is not uncommon for the same truck and I to pass one another during a day, and it is amazing how that trucker is seemingly on his best behavior following my CB announcement.
For that reason I suggest strongly that to supplement your safe driving you get a dash cam because it does document the situation. If you drive like a jerk however, you might not want one.