So, I think one problem your missing Moss; there isnt 2 speeds on a roadway. Its not like in a 65 mph, 4 lane, that there is a 65mph lane and a 75 mph lane. There are people doing 55-60, and the right lane is going to need to pass; then move back over eventually when clear. If while they are passing, and you are riding their butt, you're absolutely in the wrong. If they are actively over taking slower traffic, but at a slower speed than some other like, thats tough. It might annoy folks, but that semi governored at 68 has the right (unless no trucks left lane is posted on regulatory signs) to pass that 62.5 mph truck in the right. It might take a mile or so, but hes not in the wrong, he will get around eventually, and if hes clear, and no longer actively over taking other traffic, he will move back to the right. Let's say you are stuck behind him for 39.6 seconds, to over take, pass, get clear and move over. You have lost what, 1, maybe 2 seconds getting to your destination.