For future reference, there is a back way in to Southpointe. I just assumed it would be clogged, too. You can take Technology to Network and come out by Hoss’ in Canonsburg. (You can also go Angerer to 980)
One of my buddies was at Jay’s. He actually left the office, found the back way out, and came back IN to Southpointe to watch the game. I was laughing my ass off.