I've been looking for this song for weeks. Its by the red hot chili peppers I think. It starts with this guy in traffic and he starts to get upset. So hegrabs his guitar and gets out of his car and leaves up the road. I can't remember but I honk gets in a little bit of trouble on his way to his destination. When he arrives to his destination, which happens to be his band practice. He starts singing into the Mic and when the song end policemen come in and arrest him.

Think you're actually looking for this:
Foo Fighters. Walk. - YouTube (http://www.youtube.com/watch?v=4PkcfQtibmU)