1b. Sit in direct sunlight for 90 minutes.
2a. Don't bring anything to eat.
2b. Sit directly across from several food booths featuring fattening non-vegan items.
3. Assume there might actually be space to sit within visible and audible range of the stage, without arriving several hours before desired acts.
How to make up for a lousy concert experience:
1a. Wander aimlessly on paths away from concert stage until stumbling upon a man-made lake.
1b. Take lots of photos of birds. :-)