I don't think you will see much traffic from a Falcons game. Just shoot straight through on 75. Just pick a middle lane and be patient, give plenty of room in front of you, and know people will jump in front of you. Just relax. I've been here almost 12 years, and still hate the place, but I've come to accept you never know what route is best, sinister go with the flow.
Most of the time you get through pretty quickly. If I head to the mountains on Fri night, I know the traffic will be horrible, and take twice as long as it should. Tis life in Helllanta.