I think they have a max 40ft. length restriction and no explanation about unhooking and putting you tow vehicle along side on diagonal painted lines or in normal parking area. I did this with 38ft. 5th wheel and dually and no one said anything but the spots were less than half full. Just don't know. With todays crew cab trucks most all towables are over 40ft. combination as are motorhomes with a toad. Does anyone know what the turnpike policy is regarding the length or parking of TV. or any combination over 40 ft.