We were stopped at a ferry crossing in TX, because our exterior mounted tank was not hooked up to anything. They require two shutoffs to be closed, the tank valve and the valves on the appliances. We simply turned around, drove out of sight, moved the tank into the interior of our FWC and got on the ferry. I purposely, can designed my swing away rear carry, so that I couldn't keep the hose attached, thinking that would be safer. I'd never forget to close the valve. The authorities didn't agree. I opted for the FWC factory installed propane system on the new Hawk