Damn suspicious packages

I had to wait about 30 mins today before being allowed to go near the platform at the train station at Robinson (the end of one of the southern branches of RER B). The reason we weren't allowed near the platform was that there was a suspicious package left on an earlier train and the police had to make sure it wasn't going to explode before letting the general public near the train in question. It was frustrating because it was raining and there wasn't a lot of undercover area left after the station had been closed. It was also frustrating because I usually go home from work on Fridays via a different route, but the normal route involves a bit of a walk, through a muddy forest*, and because it was raining, a student who was leaving at the same time as me offered to drive me to Robinson. It should have been a lot quicker than my usual route of Bus 291, metro 9 and then either 1 or 14 (depending on where I choose to change). After we were allowed to board the train, it was quite quick back to Chatelet.
I tried to take a photo of the train, and station, when it was desserted, but an RATP staff member told me that it was forbidden, and that I had to put my camera back in my pocket. What? Since when is taking photos of trains forbidden? A couple of French people who were standing near me were surprised at this rule too, and one even said that I should quickly take the photo after the employee had left, but I didn't want to risk it as the place was under surveillance.


* The forest is almost always slightly muddy, and I suspect it would be even in a drought, so during and just after the rain, it's not a pleasant walk.