It was weird enough that I kept seeing Metro cops today. Like, all over. Including two who boarded right after me, and their walkie-talkies were getting crappy reception for whatever was being broadcast, but the one radio was for some reason on a one-second delay, making them have this creepy echo effect for the unintelligible garbage that was staticking out.
But all that added in, and then I boarded a Metro train with all my fellow zombie commuters, that was clearly labelled "No Passengers." It was too quiet. Freeeeeky.