The Clown Prince of Crime
Super Freak
You're in Orlando right? Back when we were living outside of Tampa (about 10 years back) there was a guy who'd go downtown with a Batman cape and cowl, drive around, I think he even had a motorcycle. People got a kick out of him but he was kind of a joke. He didn't fight crime, just made the rounds to amuse people. He finally ended up getting stopped by the cops and publicly unmasked due to an old KKK law that said no masks in the city, lol.
In reality, it could be two crazy people (Joker and Batman) "battling" each other, while the rest of the city sort of ignores it or think it's weird. Both Batman and Joker would have to run away from the cops. It be sad to watch....and funny. Poor Alfred can't do anything because he has to protect the Wayne public image, so he's an accomplice that knows Bruce Wayne is REALLY crazy. Howard Hughes level crazy. A Bruce Wayne that is paranoid and truly traumatized, and obsesses with "the clown man" that killed his parents. This Batman would kill low level criminals and say to them, "You get what you deserve!!".