That's odd for a pedestrian to be there. It's HIGH traffic intersection with virtually no pedestrians anywhere - in fact, there's really nothing at that intersection except open field, unless I'm thinking of another intersection.
At 0230?
From satellite view, your assessment seems accurate:
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Suitland+Parkway+and+Naylor+Road,+Temple+Hills,+md&sll=37.0625,-95.677068&sspn=35.768112,78.310547&ie=UTF8&hq=&hnear=Suitland+Pkwy+%26+Naylor+Rd,+Marlow+Heights,+Prince+George%27s,+Maryland+20748&ll=38.851398,-76.959121&spn=0.004295,0.009559&t=h&z=17