I realize that this horse has already left the barn, but I hope some of our other readers that use storage facilities start finding time to check on their trailers while being stored.
More than one owner has gone back to check an RV and either found it burglarized or even gone.
Unless you can easily afford to lose it, at least 2 visits a month seem a good idea, even if only to be able to close it up and prevent further damage.
And, because some of these perps are "insiders", if the facility knows that you are a checker, they will be more apt to leave yours alone.
Some might remember my story of buying an Airstream Bambi that turned out to be stolen (a very inside job) and the actual owner hadn't checked up on it in years. They just paid the rent every month and figured it was safe.