Permission for Relative RV Use

My son and his family will be driving my 31' Winnebago from Minnesota to Florida for me, They will also be towing and using one of our cars.

I am thinking that I should provide some kind of Permission document for them in case a question arises as to whether they have permission to be doing this.

Anyone else heard of this, or dealt with this situation? Anyone familiar with a form to be used in this situation?

Appreciate any advice...

I've never dealt with or heard of a problem in this situation. If your son has the same last name as you, it shouldn't be a problem.

Just be sure your son doesn't give law enforcement a reason to be pulled over But a notarized letter from you would probably insure no problems if the question came up from law enforcement.