Not to cast any disparaging remarks, but a lot of the discussion points have trended towards an implied desire for a "Nanny State" status. What ever happened to people being responsible for their own actions? Just because there are not signs visible at every entrance doesn't imply there is any culpable negligence on the county's part. I'm mean really...it's the Gulf of Mexico. There are currents, waves, and big scary fish with teeth. We all know that. It's called implied risk.
I have stepped down from my soapbox, now. You are free to proceed with the "flaming"!
Please don't misunderstand. In no way did I mean to imply by my question that an owner or the county SHOULD be sued, only that they might be. The "someone else is responsible for my poor choices" attitude seems to be widespread and growing. None of the counties involved has the luxury to decline to rescue those who fail to heed the (multiple) warnings and show little common sense (that should really be re-named; it's all too uncommon these days). I know budgets are already stretched thin. No doubt they are eagerly anticipating the end of swimming season.