Theres a place just north of New Tampa, maybe 7-8 exits up, and if you get off the exit, make a right, and keep going for a couple miles, theres a dirt track. They do racing I think maybe every Saturday night? But its open to the public during the week (not sure specific times), and has jumps and berms, and was a fun course when I took my uncles Banshee...
Sadly, I dont remember the name... Im sure someone else has heard of it or knows which one Im talking about. Good luck with it... sucks about your neighbors...