If your stuck in lane 2 or 3 and someone ahead is slowing all the traffic down in your lane you can move into a vacant left lane & gradually without breaking speed limits creep by them if they are too stubborn or ignorant to notice their rear view mirror is full of traffic. I doubt you would get in trouble for that.
Problem is it can be a bit tricky - people who drive like that often do silly things like changing lanes without looking and/or you get other people stuck behind them who may try to pull into the left lane, etc.