- Walk down the archives until you reach the end
- Then go through the door to the LEFT of the small office window
- You'll find yourself in the warehouse of steel shelves with boxes
- Walk to the back where the loading dock is and the intercom will say the sensors detected an "unauthorized person" or something like that
- When it says that, walk back the way you came from, the lights should turn off on your way back out

And there you have it!

thanks