The last show myself and my family caught released at 11pm and that was on a Tuesday. Probably would depend on the show but I'd agree with the other that's it's about 10pm-11pm release time. As for re-entry, there was a restroom inside and a spot to order food and drinks so we never had to leave. I'm sure if you had your ticket or wristband with you, you could be allowed back in. However, check first before you do attend the show.
There is no reentry allowed and I believe 10 or 11
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