just returned home from hstp, visit was good until the last day at checkout and found all dump station valves locked. nobody around, called sheriffs office, a nice lady found someone that said they could not be opened up. this upset me greatly. why were we not told this, or the area closed off with barricades? charging full price for limited services is not right in my mind, what do you think? we drove 20 miles out of our way and paid to empty our tanks. doubt we will return anytime soon!