I was on the platform at SEA (behind the fence) waiting for my mother to arrive on a Cascade. The Empire Builder was being repositioned closer to the platform and a couple of Japanese boys were photographing it (from behind the fence).
A couple of women drove by in a baggage cart (platform side of the fence). One of them bellowed in a very un-ladylike way "Put that camera away! Security doesn't allow photographs!", and they roared away on ther cart.
The young photog flinched, lowered his camera, and stared at the backs of the departing Amtrak employees.
Don't have a clue what was going through his mind, but he casually took a few more photos then strolled into the terminal.
I was carrying a camera that could have taken the same shot from a block away. No one said a word to me.