Sorry to see this location is closing down, but there are still plenty of Pollock Johnny's around, including at Camden Yards, at Security Square and in Ocean City.
The Security Square location, while still open, is in the food court of shopping mall. Beter than nothing but lacking the color of the roadside places. The Camden Yards location is open only during games and even then, I believe you have to have a ticket to get in.
The Ocean City location is not actually part of the real Polock Jiohnny's.
I wish there were still plenty of lacations left, but for all real purposes, there's just one, in a food court. http://www.polockjohnnys.com/locations.aspx