That's amazing, I hope you track the character down. Sadly, that's not that uncommon.
We had a Greenbrier walk out of a club event, I was pretty astonished they could pull it off. The great part was, there was a lot of video during the event, so we gathered all the video from visitors we could and identified the perp. The locomotive was recovered, but he had already painted the tender, so that had to be restored. There has to be a special place down below for people that would do something like that!