I had some **** the other day cruising who would switch between 60 to 80 in an 80 zone. The pattern was they would slowly get to 60 then plant it to 80, then drop it off again back to 60.
For perspective the nearest car was well over 100m ahead but because the right line is always chockers you can't do ****.
Once I got past the speed camera where all the right lane hogs turn off, I dropped the gears and gave them my feelings