When the Tanker driver gets in the truck, you can see that it's labeled "Combustible". However, since it is carrying gasoline, as indicated by the tag on the hose valve, I would be labeled "Flammable".
When leaving the slip the ferry is shown from the wheelhouse as going in reverse. Ferry of that type would leave the slip in a forward direction.
EDIT: Except Klikitat was, as shown in the external visuals, a double-ended ferry, with a wheelhouse facing forward and aft.
When Roy and John are met at the airport (Sea-Tac) The announcement gives a numerical gate number, but at SeaTac, each gate number is proceeded by the concourse name (in this case B concourse). After they are picked up, the exterior shots of the car taking them to their first stop (Harborview), they are heading north from the airport. The interior car shots have indicate they are traveling South as the Rainier Brewery is on the right hand side of the screen, Whereas it should be on the left if they are traveling North to Seattle from the airport.