my best was at the TPA airport, after a 3 day trip to Sao Paulo. Had spent the day up in New York wandering around so got to TPA after being up 40 hours or so. I could not remember where I parked. I wandered around the place for 1 1/2 hours--after calling for help and being told "We take a complete inventory every night--with your license plate number we could have you out in a jiffy" I rented a car at Hertz, where I ran into a guy I went to high school with 18 years ago (!), then found the license number the next day, went back to the airport, told them what the plate was and within 30 seconds was told section, level and space. Major oops!