I believe the park closes at dusk, unless one intends to camp (open all year). They have meteor shower watch parties during the warmer months (3 of them). However, I don't believe one is scheduled for the Geminids. I'd recommend calling the park during business hours and asking.
The park is closed so I’m afraid not. When the weather is better we offer evening viewings for the bigger celestial events.
Viewing yes. It's a meadow so it's wide open. As for parking you may want to get their early as the main parking lot in front of the buildings is on the small side if that's where you intend to park.
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