It's at their "office" (not The Bus), the scene after Fitz's beer scene when he let go of Simmons. Skye was at her computer looking at images of the painting/code, when Tripp walks into the room from a hallway via a door that's open (and left open). Then Oswalt walks along the hallway, past the open door.

Now I just need someone to call Barry Simon. Repeatedly.

I have no idea why, but I feel like Wells is protecting Barry in a crazy-stalker-obsessive kind of way. Almost as if he's trying to stop the "Flash Missing" headline. But this could be because I really like Wells when he's sitting down…

Really? For some reason it reminded me of that episode of Sex and the City that he was in. Not good.

I thought she would use it to make the laser problem go away.

He was in the background of a scene - there was a hallway and he walked from the left of the screen to the right. I thought I was seeing things until you mentioned it!