I'm just a bit North of Houston and it gets colder where you are than here. The main thing is how long will it be below freezing? If just a couple of hours, I wouldn't worry about it. If it is going to be more than a day, or two, take the appropriate action.
My Jayco was winterized, pink stuff and all, the first winter I had it. Since then, never in the past 13 years. All I do is open all the cabinets, closets, drawers, etc. and turn an electric space heater on the inside.
For the couple of hours forecast below freezing later this week, I plan to do nothing. If it freezes longer, I will use the space heater.