I visited the location when they were filming this episode! They actually did a lot of interior scenes at the location, which I didn’t realize at first, so I got there waaaay too early LOL.
Walked around a bit with my friend, and didn’t see anything filming. I guess we got there after their daytime exteriors. Totally random, but the construction worker in the background of the scene where Dean drives into the alley was an actual construction worker. I did manage to spot the cars they used in this episode though!
We went back at night and saw the front of The Century House all lit up:
It took a while before they started filming. They had to set up some big lights, the fog machine, and get the POS of the week into position. I also saw a group of girls wearing white dresses walking out and being driven off. My first thought when I saw them was “virgin sacrifices”. I was actually not too far off the mark LOL.

And then we saw Jared walk onto location! I waved really excitedly like a silly fangirl and felt kind of embarrassed after the fact, even though Jared waved and smiled back. But I was just like, “did I really just do that? Way to be cool, self.” *facepalm*
This was the scene where Sam drives in to save Dean from Emma. I watched Jared drive down the street, get out, and run into the building. They did three takes, in about a half hour, and the final scene ended up being a few seconds LOL.
They probably could’ve finished sooner, but they had to stop every once in a while to let traffic through. In between takes Jared seemed really happy, talking to and hugging some of the crew members. And we heard his gigantic laugh from across the street XD
All in all, it was a good day, despite the cold. And I got to meet some more awesome SPN fans! :D
More pictures are in my Supernatural on location group on Flickr. It’s mostly of the set and the car though, you can’t really see Jared, so don’t get your hopes up :P
Feel free to use the pictures for any non-commercial purposes, although I would be surprised if anyone wants to use my, admittedly crappy photos. I’d appreciate a link back to my flickr or tumblr if you do though!