Very intriguing~ no caste
The Wheaton Station and its (very long) escalator > would almost seem impossible for a deer to navigate down
The remoteness of the tunnel between Forest Glen and the Wheaton
station makes any logical explanation almost mind boggling as well??
But then again~ maybe~ the deer took the station elevator

Or > maybe it's just another Washington mystery
just waiting to be solved
Let me know if you find out
Note~ I use to live within walking distance of that metro station
in Wheaton, and also worked right next to the White Flint Mall~
May I ask are you a Washingtonian by chance?