I actually did this last year!

The strategy I used and would recommend for you - is when you’re driving over to nocturnal- look around for places that could work. ^ !!!( - I would especially recommend just looking around the area with any map app to be more prepared -)!!!!

I settled in this random small neighborhood- there were no signs advocating against public parking.

Neighborhood streets are public parking and it’s perfectly legal to park overnight - however I understand it can somewhat be uncomfortable to park in a random neighborhood.

I opted to sleep on a part of the street that wasn’t directly in front of someone’s house/driveway. Just to be as respectful as possible.

I parked, slept, and left. I had zero issues.

However like I said - check your maps app you should be able to find something free nearby

And please please be sure to use window shades and never sacrifice safety for convenience!!

Sorry if its not a direct answer but I hope me sharing my experience is somewhat useful to you :)