I agree with all you said about Oak Beach but you have the WRONG Oak Beach. The Oak Beach you are referring to is to the WEST of the Oak Beach Parking lot. The homes along that PUBLIC road are known for wild parties and for security being needed, paid admission, and all of the descriptions that you wrote about.
I'm not sure where you got this information but it is 100% false. And you're correct that there are no "parties" like described going on in the O.I.B.A. either. It's a small community and even if it happened just once ten years ago it'd still be talked about. The houses are all right up on each other, there's no room for parking. How on earth could a "party" like described happen in that neighborhood without anybody raising an eyebrow?