Disney will not search your person, only bags and backpacks. They usually don't have a problem with knives 5 inches or under if not seen. The main thing is do not let them see out in the open you are carrying a knife. They may ask you to either put it in your pocket or take it to your car. If you have your neck knife on you and you go on a coaster, just make sure it doesn't come out. And do not under any circumstances get caught with a gun in the park (even if you have a Fla. Concealed permit or even it you are a undercover LEO,FBI or what have you. Disney security has a direct com with Orange County SO and they have a office on property at all locations.

Their security is like a parrot in a coal mine, all they are suppose to ask you politely and if you do not cooperate then they let the Orange County Sheriff take over. There is a lot of Sheriffs that walk the park dressed as cast members or tourist. If the security gives you a hard time you can report them and they will get into trouble, they will not mess with you as long as they do not see anything.