The actual ordinance would depend upon which state you’re traveling in. Here’s my state (UT 41-6a-704):

Any police officer will tell you to get the heck out of the way. Yes you! If you don’t have anywhere to be promptly, then don’t leave the house! You are causing the problems with traffic, not “the assholes” who want to go around you. Most of them want to go about 5-8 miles over and it’s not your responsibility to hold…

Although, if you’re in the left lane and someone manages to pass you on the right, that probably means it’s okay for you to move into the other lane...

If someone passes you on the right, they’re an asshole. If everyone passes you on the right, you’re the asshole.

I want to make a comment like “tell us how you really feel”, but your comment is still tamer than the vitriol I express in my car when stuck behind someone who is using the left lane as their designated lane.

If the police intended for us to never be able to drive even slightly above the speed limit, don’t you think they’d do something about that? Shit, companies are developing cars that can drive themselves, they could easily make a car that limits itself to the speed limit 100% of the time if they wanted to. Or the…

Actually, if you are impeding the left lane, you ARE breaking the law in many states, regardless of the speed of traffic. Troopers generally are not worried about speed until there is a large variance from the surrounding flow.

Looks, this is real simple. The law says speeding is wrong. The law says not moving out of the left lane when somebody comes up behind you is wrong. This is not a debate. YOU ARE BREAKING THE LAW.