Uh, its not like they don't know who the guy is. He's gone out of his way to make himself a bit of a celebrity. Plus, they do have cameras and are very likely using facial recognition tech, especially in areas around court houses since there's a higher probability of something occurring there.
Plus, I mean, sure, if you ignore that the judge told this fuckin dipshit specifically not to do what he did for a reason (maybe because he's prone to doing that?), sure maybe you could be bugged and surprised that he happened to end up doing it. I don't know, maybe they'd be on the lookout for him doing it? Nah...