Washington state drivers are notorious for this, btw. I was headed home to Seattle from an event in eastern Montana on I-90 and me and another car were averaging about 90 mph. Every now and then we’d come across a car that refused to move out of the way and we had to pass on the right.
Out of six cars that did this, four had Washington plates.
It is the same everywhere. People who do 1/2 mph over the posted speed think they have a right to ride the left lane for a far as they like.
It certainly was when it came up as a bill moving through the state legislature a couple weeks ago.
There are a number of passive-aggressive left lane enforcers on FR with Barney Fife complex.