Two years ago, I ran out of the park at the U.S. Night O Champs near Washington D.C. and wasn't sure where I was. (They don't mark private land the same way we do here.) I got yelled at by a woman for trespassing when I thought I was on a strip of parkland between two mansions. After a road run around the park boundary, I eventually found a place with no houses and got back into the park. I finished up but it was a long night! I finished midpack so I guess a lot of people had issues in the dark.
Welcome to my world. Unfortunately for me, I do alot more of these races and still don't learn from my mistakes. :)