You'd be better off stating one car/tent camper.
It's not a popup.
What issues are you having? Where are you paying $80? The only California State Parks campsites that cost that much, are state beach campsites with hookups.
Private RV parks may not allow your type of camping.
Take a look at San Diego County Parks.
Dan- Firefighter, Retired:C, Shawn- Musician/Entrepreneur:W, Zoe- Faithful Golden Retriever(RIP:(), 2014 Ford F150 3.5 EcoboostMax Tow pkg, 2016 PrimeTime TracerAIR 255 w/4pt Equalizer and 5 Mtn. bikes and 2 Road bikes