Part of the joy of watching the Super Bowl is getting to see all those whiz-bang, big-budget ads. The best spot to air during last year’s Super Bowl was surely the “Green Police” advertisement for the Audi A3 — equal parts hilarious and horrific. Set to the tune of Cheap Trick’s 1979 hit, Dream Police, the Green Police spot depicts an Orwellian near-future in which a legion of environmental cops, many of whom wear shorts and get around on geeky Segways, frequently intrude upon the personal lives of the citizenry. They spy, sift through trash, and set up dragnets looking...