Do you mind walking about a mile to the stadium? Park at Team Pro Auto Care Center, 3707 Southwestern Blvd. Since it's at the eastbound end of Southwestern, away from the stadium, you'll be way past the gridlock and will only have to deal with the traffic leaving the stadium. If you stay on Southwestern it will merge with Transit Rd and you can take that to Exit 49. That will bypass most of the crush on the I-90.