can we park and sleep in car overnight just to enjoy and relax thanks for the comments

I have stayed on pch however if cops come they will tell u to go

Yes but camp site you pay extra.I dont remember the rates . Staff very friendly they advice you

Yes, probably with a reservation. You would have to call the park to find out what their tent policies are. Some campgrounds require you to have your tent pitched there.

Not in the day time parking area, only in the camping area which is right on the beach but it may be difficult to get in without a reservation

No