There is a railroad crossing, I think in Texas in which if you come to these tracks and go very slow or stop the spirit may push you over the tracks so you do not meet the same fate the spirit did when alive.
I heard it was somewhere around San Antonio and it was a bus with kids that stalled on the tracks as a train hit it killing them.
Supposedly, you stop at the intersection and cut your car off and after a bit the car will move by itself across the tracks. Kicker is it rolls uphill.
Also you can put Flour or some kind of powder on your rear bumper and trunk and after it rolls past the tracks there will be small hand prints in the powder.
A friend of mine told me her and a few friends went there and tried it and the car did roll across the tracks and there were hand prints.
But now she told the story after bowling night and a few beers... (or quite a few as this girl could, and did, drink) so...
This got me curious so I googled it and sure enough there's utube vids about it. Tells what intersection and all.