Originally Posted by
jackal
Seconded!
Also, has anyone figured out if it works to take a shuttle to that parking lot at 96th and Sepulveda (across the street from the stairway--I think it's labeled Parking Lot C) and then walk from there? If so, that would cut out a bit of walking, especially from the westernmost terminals.
If you are leaving from TBIT or T4/5, this option will save you some time but not much. From other terminals, walking directly to In-N-Out is likely faster than taking Shuttle C to 96th street.
If you don't want to walk, Parking Spot Shuttle is still the way to go from all terminals.