These people found out very quickly that you do not mess with trains
. There is very obviously something wrong from the get go here, as one car can be seen reversing around on the tracks, with the warning barriers already down. It's not this car that ends up being the subject of the video however, but instead the one in front of it, stopped on the tracks, with its doors wide open, and its occupants walking away from the scene.
It's hard to tell why they were forced to abandon the car instead of moving it, but whether it is traffic in front, or even a stall, they learned the important lesson that you never ever try and cross train tracks without a clear path in front of you to completely cross them. If you have to stop on the tracks, you don't cross the tracks. Because trains can't stop.