They can not legally stop you. Will they try to, will they bully you or try to intimidate you? Who knows. Maybe. Will they be glad to see you OC. I doubt it. They could charge you with murder. They could accuse you of being a child molester. There is no activity, armed or otherwise, that you can engage in, anywhere, that does not have a risk of possible detainment by a LEO, justly or unjustly. You have to decide if you want to take those risks. The only question is, will you let that risk determine your actions? If you are afraid to do the things you want to do because of your government, you might as well stay home and hide under the bed all the time. I don't want to go to Thunder Over Louisville. I would not go if they paid me to go, but I will be in the Jefferson Co. Sheriff's office tomorrow and I will be OC. Will they be happy to see me? I don't know, I doubt it. Will they let me in? I don't know. Will they yell at me and be really, really mean to me? I don't know. Will they throw me on the floor and point guns at me? I don't know, but I will expect and demand that they obey the law. I do know that I am a free person going about my own business in a lawful manner in a free country and I don't need anybody to give me permission or advice. I don't know the answers to these questions, but I do know that I want to go, I want to OC and it is legal to do so; so I'm going. If you do go and are OC, you can't go into any room that sells alcohol (except a restaurant), so stay out of the beer tents. If you want to drink beer, which I don't recommend while armed, send somebody else in the tent to get it.