Does the park close at dusk?

Yes

Technically yes , in reality no. There is a small group that doesn't get there until about 6pm. It's pretty dark by then. I don't know how long they stay. Someone used to lock the gate at night, but I don't know if that still happens.

Yes, but not promptly at dusk the last few times I have been there.

Yes the park closes at dusk and has locking gates.

Yes but we have been in there late