This happened over the weekend at a small Dallas area airport. The video speaks for itself, but yes, there is a road that crosses the runway at it’s entry point. Apparently the only warning to drivers about the runway is the word “STOP” painted (not via a sign on a pole or flashing lights) on the road itself.
No one was badly injured, and the guy flying the plane was a student who only had hours left before getting his license. He was so freaked out he quit the lessons and has decided to never fly a plane himself again.