It depends if it's just "banned" or if they actually had them tresspassed legally. If they went through the channels with law enforcement, and a tresspassed person goes back on that property, it's an automatic trip to jail. Granted the police would have to actually run their name through the system before it would get noticed, so it's pretty low odds. But getting in a wreck in a parking garage or getting tied up in another guest's fight are things that could lead to police running their name. No idea if there's a time limit on a tresspass, or how its actually handled in Florida as I'm in another state. If they were just banned, a call to guest services would probably get an answer. If it was a legal tresspass, I'm not sure the park would even have that record.