I am truck driver and i travel these interstates everyday sometimes we have to merge into left lanes for passing which is ok and for 4 wheeler drivers that decide at last second to merge onto onramps with traffic especially brookshire during rush hour. Countless times I have seen during rush hour cars cut us off just to get to the exit and hit there brake and be stuck in the right lane causing us to immediatly merge to next left lane and this is to avoid any accident but this is the headace that comes with riding in restricted lanes through cities. Alot of times its just for a peace of mind to stay out of the right lanes sometimes too many cars getting off and on. I try to stay in those lanes as much as possible even troopers know this is a problem and understand it. Not saying its right its just sometimes not that easy.
