Realistically with a 43' MH and a 4 dr Jeep in tow, I have no business insisting the right lane is mine in city traffic where people are juggling to get on and off the highway. There is nothing worse than getting trapped over there and 12 cars are trying to merge. You either stop, break them up, or watch in your mirror as two of them grab the dirt when they finally realize your towing. One biker even waived a gun around at me after he came around me on the left, while his wife waved her finger.
If there are more than 2 lanes in the city, I move over a lane and stay moved over until we get out of town. I don't really care what the laws say.
Interesting note on light controlled merging - you still have to merge as usual, but the lights are used to throttle merging traffic to reduce congestion. Many are side by side merge lanes. Some states are smart and alternate the green lights so it is a systematic release of cars into the merge. Colorado likes to play games and turns both lanes green at the same time creating a dragstrip every 45 seconds.