Coachella Music Festival 2004 in Indio, CA. Took me 2.5 hours to find my car, 2 hours to get out of the parking lot, then another hour to get onto the freeway. Finding my car was absolutely hellish. There were 3 lots that spanned a mile by a quarter mile (estimates), and I didnt know which lot it was in, and each lot was packed end to end with cars. All this conjoined with my current physical condition - tired (it was 2am), exhausted (front row, all day.. that was 7 or 8 hours of holding onto the guard gate), heat-stricken and thirsty (it was 90 degrees even at this time of night), psychologically discouraged, and very allergic (all the cars moving around kicked up loads of dust in the air, making it practically unbreathable).