What is the strategy or situation for RVs that use a tow behind vehicle?

There is plenty of parking for Rvs and trailers,I think there is a extra small fee

They have overflow parking for trailers and cars. Not sure if there is an extra fee. You will want to disconnect the trailer, at least, in the overflow. Rv and car can both fit in camping spot.

You can use RV that are being told you just paid like a regular RV for a spot

I've never used them , but there are space rentals for RVs