Any tips for backing into my camping site solo?

That's been my process when backing by myself. I scout the site first to look for low hanging limbs and things that might hit my slides. If possible I put a chock block down where I want the back of the tire to be and then I start backing. I will get out and check if I think I'm getting close to something. So far I haven't hit anything. The only problem I seem to have is people who want to walk or drive behind me as I'm backing.