I rented a warrior for 50 hours at OBA a fair few years ago, after a few initial frustrations explaining that I wasn't a student (4500 hours) I was given the keys to the aircraft, a key to the main gate and told to triple click a freq to get the airfield lights to turn on at night.
That was it.... left alone, aircraft was mine for two weeks and, although not a looker (hated those purple seats!) was mechanically sound.
Fabulous scenery.....for about the first 2 days then disappeared off down to Miami and over to the Gulf coast. Much more fun.
Enjoy, don't let the senior instructors brow beat you, you are, effectively, renting a car.