How did the Slug Bug game start?

As part of the Punch Dub marketing campaign run by Volkswagen, a man named Zachariah Davis was presented as "the guy who made a game out of seeing VWs and punching his friends."[4] This campaign, launched in 2009, claims that the game was started "over 50 years ago." Though provided by the company itself, this history of the game presented in this ad is purely humorous historical fiction created[5] by the ad agency Deutsch Inc.