Camp Spots vs. # Passes - On Site South

I have 1 vehicle pass and 6 people with wrist bands. Not all can show up thursday. Can I lay tarps down for the other troops I intend to be with in the on site camping south…? i.e. could I bring my vehicle in, grab 3 tarp spots around vehicle for friends and family???
What about a spot for a shade structure?
What is cool vs. frowned upon?