Camping is available with permission from the police dept . Which would allow you to park overnight
You would likely find yourself in jail, and your car towed.
I'm pretty sure there is a "campsite" area designated but I don't believe there is running water or bathrooms like a campground would have. No fee to enter or park when I was there last year. Update: go to the website, you can get a map there. There is definitely a campsite in the upper left section of the map.
There is not.
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