That's great news. Hopefully it will stay open for years to come.
We found, since they are renting parking space at Oaxaca Trailer Park, that during the day, during the week, was the easiest day to get in and out. However, if you can get as far as Oaxaca, you have already learned to fit yourselves into and out of anything!
There are quite a few of these old parks around, and as much as we have talked to original owners, we have had minimal luck discussing the original agreements with them. All of them have so much in common: great locations, a patio, drain, electricity and water. There MUST have been some serious tax consideration, renumeration, old boy network (although we personally knew a female owning one) a network of tourist oriented people with payment to them, who set them up. Would love to know!