If you join a host game and have a truck in the garage and then leave the host game the truck will stay in the garage on that map. Usually when I leave a host game my trucks on the map go back into storage within the garage. I'm not sure if it was designed that way but if a player does not have all the DLC maps and leaves a truck in a garage on a map they don't have it can get tricky getting it back unless you have a friend who can make an online session for that map to get it back.


I think guest trucks on the map or in the garage should all be recovered to storage when they leave to keep things simple.