If I have luggage in the truck, I'm always concerned that the driver may simply forget and drive off. Leaving the passenger door open until you get your luggage is good advice.
Given that the driver did this intentionally, is there anything preventing the driver from taking off with an open trunk? Hell, from the video footage in this article, even an open door wouldn't have done much. He could easily drive a block in a residential area with an open door and then pull over and quickly close the door.
Yea, I was giving the strongest form of the argument but this would probably work too. In the video, the guy took off pretty slowly to minimize sound so I didn't mention this possibility.
