Classic case of why one should never, ever, talk to the police. The case would be all but impossible to prove without dragging the neighbors into court (unlikely) as wittness if he'd kept his trap shut.
Never, ever, ever run your mouth to police. Never report anyone. Never report anything. Keep your yap shut and stay out of the Police State's crazy alternate universe.
If this was PA the cop would be in deep (expletive deleted). Something like this happened when a woman was swearing at a malfunctioning toilet, it got tossed on First Amendment grounds.
Oh man. I feel for this guy. My cats are infuriating. Luckily, I don't think the neighbors can hear me.