Gothamist was glad to find out that no, we weren't crazy (this time) and in fact, it was the Modest Mouse song "Gravity Rides Everything" from The Moon & Antarctica that was on a Nissan minivan commercial. Deviated Septum confirmed this and alerted us to the fact that "Gravity Rides Everything" had also been used in a beer commercial. Well, you got to sell out some time... we'll check in again when Built to Spill is used in a commercial.
Slate's Rob Walker takes a look at the faux-vandalized/graffiti'd Nissan ads and the problem of corporations trying to create their own subversive marketing campaigns. See the posters here at the Wooster Collective.