I suppose you meant https://overnightrvparking.com, since overnightparking.com domain is for sale.
At $25/yr it would not be worth finding out if it is worth using, or not. At least on my side of the country, finding a place to park overnight is a no-brainer, with a minimum amount of effort.
2006 F250 Diesel
2011 Keystone Cougar 278RKSWE Fiver