The 10 states listed below severely punish folks who defend themselves, or others. Even if you are not convicted, they will make sure that you are financially ruined defending yourself legally.
We'll not even travel through those states with the motorhome... just imagine a traffic stop, accident, checkpoint, etc., while there is a firearm in the RV. When they check your license, the records cross check will show that you have a weapons permit, that's when the drama will start.
California, Delaware, New York City, Connecticut, District of Columbia, Hawaii, Maryland, Massachusetts, New Jersey, New York