To late now, probably won't dip back down to last night lows again. We are camped in the Ft. Myers beach area and we didn't get much below 30 last night.
If I was the OP this is what I would do next year when storing in Central Florida. I would empty my fresh water tank and my water heater. Bypass water heater and drop about 4 gallons of RV antifreeze in my fresh water tank, run all faucets and flush the toilet, then dump all tanks and close all valves.
I wouldn't worry about antifreeze in traps or doing any of the other winterizing methods some of us snowbirds have had to do. For the price of 4 gallons of pink stuff and about 20 minutes of your time when putting your RV in storage you won't have to worry about these freezing Florida temps!