We found this funny picture when searching Flickr. According to the author:
It's a little hard to make out, but you can clearly see an elbow of a slumbering WMATA employee (or their friend).
5:50 pm on Labor Day 9-3-2007, I was walking along Fort Drive next to Wilson High School when I noticed an idling WMATA vehicle. The idling seemed odd since there were no WMATA personnel visible in the area. I lloked through the passenger side window and saw the pictured individual lying on his side.
DC license plate: C 64927
Marking on driver's side: SMNT 14552
Photo from "Forest Hills Frank"