Do you need a state park pass to go camping for a night?

Yes

Yes you do.

Technically if you camp more often than just one night buying a past there isn't that much of a difference it does make more sense to get the pass with your registration renewal if you camp more than one night a year we Camp about 15 or 20 so it's definitely counts

Yes. Its best to pay for the recreational pass when you renew your license plates. It saves money and time.

Yes. all state parks require a park pass for entry

I don't think so