Here's the other side of the story. Wife and I have been traveling a bunch in the motor home and just went all the way up US 1 Santa Barbara to Crescent City, and then over 199 to Grants Pass Oregon. I'm driving a 25000 lb coach pulling a 4 door Rubi and it's 1,000 miles, one lane each way filled with 15 mph turns and many many grades. I pulled over regularly when even 1 car would be trapped behind because I do know what it's like to be trapped behind a big slow pig. I'll bet I pulled over more than fifty times and believe me it's a real tug to get that thing rolling again on a upgrade and NOT ONE single driver gave me a "thank you" for be courteous wave, (however nearly every biker did). Towards the end of the trip I stopped pulling over until I had the legal limit of 5 behind. So the moral of the story is which came first, The Chicken ( arrogant driver that thinks everyone needs to get the hell out of his way) or the egg (traffic slug that's now pissed so wont pull over). Someone pulls over, give them a thank you for being courteous wave.