Sorry, but you've been beat. There's a guy who lives over in Eagle Harbor down here who's entire house (and it's about a $500,000 house, which translates to about a $900,000 in MD/VA) is black and gold. During football season Sundays he's got dozens of Steelers flags, banners, pennants, etc., hanging all over the black and gold house, and then we all go over to the local Turn4Wings to watch the game with about 300 other fans. It's a blast.
The best thing I've seen yet is still the Jaguar/Steelers game from last December. There was so much black and gold in the stands that Channel 4, the local station that broadcasts the Jags games, wouldn't show any crowd shots. We had over half the parking lot filled up with Steelers tailgaters, and there were about a dozen Jaguar folks there. It was sad. We're all getting "Welcome to Jacksonburgh" signs and shirts made up for this year.
Even if the Steelers aren't playing here we can still rile the Jags fans.