Thank you for all the answers. It would only be for a few days in North FL or close to there.
Never considered using the pink stuff, and not being able to use my water after that.
I only considered draining lines, maybe blowing them out. I can't imagine that a few degrees below 32 for a few hours at night, will freeze pipes in the walls with heat on, but I could be wrong.
As for whether or not the TT is prepped, I have never looked. Never had any need.
We are in south east Naples, so in 35 years of living here, I have only seen frost a few times, never a freeze.
Thanks again for all the good answers.