I assume you mean Storage Lots. Parking implies to me you parked at the store for an hour while you shopped and if you are staying at a dedicated campground, it would be getting a campsite.
I would expect storage lots would have a lot of availability during that time frame as snow birds come down and move their rigs to their winter campsites opening up space in the storage lots.
I've seen lots of them in Florida but can't recommend as we haven't used one.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV