I've heard of their 55mph limit for those towing trailers, luckily I've always traveled by car or plane when visiting for business or pleasure. We flew in for a week last summer in SoCal and hardly seen any RVs on the their highways. Although it's somewhat ridiculous to enforce a 55mph limit on just those who are towing, thankfully it is a non-issue for us as we don't have any future plans to RV there. We primarily do our RVing in the four corner states and Texas where such constraints are not put upon a select few.