The Get Out Clause are an upcoming UK band who are currently unsigned. They took a brilliant and I’m sure soon to be much copied method to producing their own video. Unable to hire a production crew for a standard 1980’s era MTV music video, they performed their music in front of 80 of the 13 million CCTV “security” cameras available in England, including one on a bus.
Got a band but can’t afford to shoot a video? Use public CCTV cameras and then demand the footage!
I'm not sure this would work in the US as the video footage might not be available, but it is an interesting idea.