From what I remember Assanged attempted to get diplomatic license (become a diplomat for, don't know the technical term) from Ecuador but did not. There he can't get in a car and none of that stops the cops from setting up a large traffic jam till said car runs out of gas and assange has to walk. I'm not sure if there is diplomatic immunity for a tow truck.
The image of Assange trapped in an out-of-gas diplomatic car, being towed behind a beat up truck driven by a very amused blue-collar driver on the way to the airport sounds rather like something from a Douglas Adams or Terry Pratchett novel.
