This thread didn't start out this way but I got to say something...
Like everyone else on here I agree that you need to stay out of the left lane unless you are going to pass someone. What is it about human nature that makes people drive under 60 in the left lane, then when someone who doesn't have all day to take a slow Sunday drive on a busy freeway wants to get around them, they want to speed up to 70 to prevent you from getting in front?!? I had a P.A. system in one of my older vehicles, very good at letting people know how idiotic they are. Also good at stirring up trouble, which is why I go without it now.
Bottom line, if you are in the left lane and notice you are traveling the same speed as the cars to your right, MOVE OVER, let people get around you. The Seattle Traffic situation would not be nearly as bad if people knew how to drive efficiently.
Just to be clear, I was making this a general statement, and not one directed to the OP. I was not there. Just expressing my opinion as it relates to the topic (however indirectly it may be).