Hi,
I recently towed my dune buggy backwards with the back wheels on the tow dolly. The front end started to wiggle on the freeway, and I had to tie down the steering wheel a little better. Then it towed the rest of the way home fine.
Probably would have been safer the other way around, but it is possible.
My buddy also went from LA to Las Vegas to pick up his dad's F-250. He towed it backwards back to LA. It was a heavy truck. Ford does not endorse towing backwards either. Yet it can be done.
I think it will help that the towing vehicle is so much heavier than the towed car.
Have fun camping!
Fred.