My dealer said they would throw in the exterior paint, interior protection, and rust proof the body for me. So I dropped the truck off at the place the dealer uses for this to be done at and picked up the truck the next day, looks awesome. They tell me I can not use anything on the finish other than the bottle of renewer they gave me. They tell me not to use any wax on it as it will not work with the sealant they put on it. I assumed that you could add wax over sealant if you so desired. Am I right or wrong ? All opinions welcomed.