The stories are so similar (GPS onto railway line) that one might suspect urban myth, but this is BBC reporting!

http://news.bbc.co.uk/1/hi/wales/south_west/6646331.stm

The silly girl opened one crossing gate, drove through and then noticed another gate. She was lucky to be opening that when the train came along.

Darwin fame would beckon, but she was unharmed!
JOhn