Not a problem... Parking at head of stairs... enter valley through Haiku Rd... Security (management) Port-a-potty (paid for by entry fee)... Management has trash cans... Call police if laws are broken (can't rely on courts to give much more than slap on the wrist though)... Sign waver before hiking... Specific open hours.  There, wasn't that easy?  All you have to do is think positive.