I always park either on the street or in a pay lot by Rouses.
I usually stop and eat some rot gut fast food on the drive down or get some of the overpriced rot gut in the arena
When to arrive
I like to be in the Arena by 6:45 for a "7:00" game, but I'm usually walking in at tip off.
When to leave BR
It's in your best interest to hit Bayou Manchac by 5:00 because of moderate to heavy traffic most of the way.
Places/things to avoid
Overpriced rice beer
As a final addition, I do better when I head to Tchoupitoulas and get on the interstate right there.