If you need to park across from terminal 2 there is no entrance to the structure from the upper level. Procced to the lower level and park in structure 2A.
No matter what airline your fly, make sure you're at the gate 45 minutes to an hour prior to departure. Doors close 10 minutes prior to departure. Airplanes don't wait for you, YOU wait for airplanes.
Your airline will try to charge you $25 to check your bag. If you could get your bag through the scanner your airline will check it for free before you get on the plane.
Despite the horrible traffic, limited parking, poor vehicle access, it really is a nice airport that pumps out tons of domestic and international routes.