I've watched several of those first amendment type auditors like amaganset and long island audit. The guy in this video doesn't look like an auditor at all. It looks like he's just a piano player who records himself for youtube. But when he interacted with the cops and other bystanders, he really knew his rights and didn't back down from the police at all but remained respectful. That wasn't something I'd expect from someone who wasn't an auditor, and it was refreshing to see him stand up for himself.