Gawd awful. I’ve seen that one one the road more than once. There is actually one worse that has small puzzle looking pieces.
Prime pays a serious fuel bonus so most Prime drivers on most loads creep along. They can and do go faster when it is necessary. They just have a stricter definition of necessary than other drivers at other companies.
Apparently, the fuel bonus makes up for the fact that it takes them a week to get across the Country!
I've gotten passed by a few, but not enough to make me think it's a company wide turn up. Though the ones I pass do seem to be faster.
Dude I passed one today going west around Williams AZ, I stopped at the brake check for my wife to cook a couple quesadillas and saw him pass me while eating, then I passed his ### again before I got to the bottom of the grade. Apparently Prime keeps going 58-60 even down a steep grade in a 75mph zone. Those fools don't even appreciate a free time saver and fuel optimizer!