If its liberty I hope Memphis handles the traffic better. I, along with many others, sat in traffic for well over an hour trying to get parked. I'll have a better plan this time, and get there earlier.
There was also the panicked crowd issue trying to get to your seats. Seems like under the north endzone is where is got so bad. I had friends stuck there for 15 minutes - couldn't move. I think it stemmed from not having all the gates open or something.
Absolutely true regarding getting to your seats. Best I could tell, only one gate was open and it was halfway around the stadium from our seats.
But ... you misunderestimated the traffic. It took me longer to get from I-40 to the game than it took for me to get from Huntsville to Memphis. And that's no exaggeration. There was no traffic control whatsoever.