You can't compare your "COMMERCIAL VEHICLE" to an RV. As I am sure you know they run under 2 different sets of rules and I don't think you want to start running under the trucking laws when you have the wife and kids, oh ya, and the dog on your lap going to Outdoor Resorts. My XL45 with the 30' enclosed Bus Companion trailer is 10' over the CA length. Who cares, I cruise out of CA at 58 MPH and then have fun the rest of the time.
I am sure you have never fudged you log book!
Kevin