I don't live in Baltimore but I'll be there next week. If the series goes more than 5 games I'll either watch from my hotel or find a place to watch it. I will be wearing my Wings jersey with pride around Baltimore.
Fanatic U in Garden City is also a good place for stuff. It's not too far from Wayne. It's on Ford Rd. There is also two sports stores in Westland. One is in the Westland Mall and the other is right across the street from the mall on Warren Ave.
I was also going to mention that Metro Airport had some great shirts and hats from Winter Classic. I think the hats were about 30.00 and they had a nice long sleeve shirt for 25.00.