Should I make extra trip to winterize p-traps?

Thanks again to everyone for the quick feedback, seems like the majority agrees that I just need to bite the bullet & head north to complete the winterize process.

I agree with reasoning that the p-traps are relatively inexpensive & easy to change, (except for the one under the shower). That it the one that causes me concern.

You folks are the greatest help by far when it comes to RV-related issues!!
It inspires me to want to help whenever I can be of assistance to someone.