Thanks for the mention! Sorry for the late reply but definitely check out El Mirage Dry Lakes if you haven’t already, run those Raptors through the desert! It’s some fun times out there
Yes you can camp overnight with an adventure pass. I found plenty of great camping spots along the Delemar Mountain Trail, with several decent pull-off points for setting up camp. I havent had the chance to camp there myself, but someone with more experience could probably share more details.