Robin,
Bay Hill always overseeds for the tournament and renovated last year. They install Emerald on their greens, which is similar to tifdwaft.
Naples has several courses that are all paspalum-Collier's Reserve, Old Collier, Tuscany Reserve. Several courses in my area have it on their tees-Breakers, Old Marsh. Old Palm is wall to wall paspalum and Gulfstream has it on their fairways. It's stripes up nice and can take brackish water, but it needs more fungicides that 419 and is more "sticky."
You wont find zoysia down here. Atlanta is about a far south a you typically find it in mass.