Since we're on the topic of drivers licenses I would like to encourage everyone regardless of MH size to get a copy of the class A license study guide from your DMV and do some reading.
The books address things like passing, convoying and impeding the flow of traffic. They address truckers, but the common sense part of it applies to any of us driving or towing RVs.
I'm sure we've all found ourselves behind a MH or trailer driving like they own the road, slowing traffic and refusing to let others pass. It causes passers to take unnecessary chances and gives all of us a bad name.