I can't help you, but I once at a conference to attend in Pasadena where I'd be at a hotel for a week. I wanted to spend the week before in my RV so I tried to find a place around Pasadena to park it for a week while I was at the conference and I couldn't find a thing. There was one RV park near by and I tried to just get an RV space and leave it there for the week, but once they found out I was just going to leave it, they even said no.
RV storage lots down there are at a premium and most are full. None wanted anything to do with just a short term storage. Good luck and let us know if you find anything.