I see a lot of people going the speed limit in the left lane, when people are going the speed limit in the right lane meaning you cant get around the people going the speed limit, but I don't really see people going under in the left lane.
In Dallas, it was pretty cut and dry - driving in the left lane will get you ticketed. Here, even though the signs say passing only, people use it to drive in, they don't get the concept...
buuuuut, isnt this all a little off topic? watch the video.