Bachmann Disaster Crossing

[NJNGauge]

I picked up the Bachmann Disaster Crossing for N Scale at a yard sale - Item #56-1201.  It's a car that stops on the tracks at a railroad crossing, causes the train to stop, is towed away by a tow truck, and the train continues on.  There were no instructions in the box.  Is anyone familiar with this item?  I'd like some information on it before I test it out and ruin it.  Thanks for any help.