The Airpark's CUP prohibits helicopters from operating fro the Airpark
And here is another helicopter taking off at the Airpark
Here is an illegal in the road right-of-away sign for the Airparks restaurant. It states "Public welcome". A visual inspection of the restaurant fails to display a LA County health rating sign.
Here is an un-permitted off road race track. If He would get a CUP for this it might not be a bad idea for the kids to use to keep them off the more pristine areas.