A Michigan man can't sue Pandora for violating his privacy by publicly disclosing his musical preferences on social media because the service is free and the man was therefore not a Pandora customer under state law, the Michigan Supreme Court ruled Wednesday. Peter Deacon sued Oakland-based Pandora Media in federal court in California in 2011, alleging the company violated Michigan's Video Rental Privacy Act when it divulged his musical preferences on its website and on Facebook.