Contrary to popular belief, school does indeed go to the late hours of the evening. 7-9pm is the usual time for many labs, including my chemistry lab next semester and boorite's computer lab this semester.
Besides, I'd still have to get to Bumfuck, Florida. According to Mapquest, it's 1,834.54 miles away. That's a 27 hour hour drive from here. And even if I flew, it would still be a 3 hours drive to the airport.
So unless someone has a spare Tardis laying around...
Not to mention it's silly to say "let's have a picnic!" and then post the suggested event the day before it happens. Even if people could get there, it's just too short notice.