In the early morning of November 5, Marty hid the DeLorean time machine behind the billboard. Marty and Doc retrieved it that evening. One week later, in the early morning of November 12, Doc and Marty hid the DeLorean behind the same sign for most of the day. That night Doc flew the DeLorean away to rescue Marty, getting a string of pennants from the billboard caught on the car. Doc was able to rescue Marty from the exit of the River Road Tunnel by dropping the string of pennants.