This assumes the rides themselves are not closed at 9pm on the dot as usual depending on if there is a line outside the entrance. Unless there is some kind of preset return time after that then they will. Got turned away at a ride at almost 'exactly' 9pm, literally a few seconds after, but there was no line. Only those with the aforementioned return time. I was unhappy and had a short but polite discussion with them about making an exception. After that I was pretty upset, but in the end they were only doing their job.
I would have been there sooner, so in the end it was my own fault, but being night time I got lost even with the phone app. Lesson learned from that experience is to expect to get lost and allow the time for finding your way back.