The 40-year-old man, whose name was given as Andreas O., said he visited Munich for Oktoberfest and parked his Volkswagen Golf on a side street in the eastern part of the city near a transit station where he took a tram to the city's Theresienwiese area for a day of beer, food and music, The Local.de reported Monday.
Andreas said he was dismayed at the end of the day to realize he did not remember the name of the street where he parked or the tram station where he took his ride.
The man said he thought he took either the 16 or 17 tram line.
"I rode all the way along both lines looking down every side street and found nothing," he told the Abendzeitung newspaper.
Andreas said his problem was not too much beer.
"I didn't come to drink. I came for the rides," he said.
Andreas sought help from the police and hung posters promising a $268 reward for anyone who helped him find his missing vehicle.
Andreas said he was overjoyed when an Abendzeitung reader spotted his car five weeks after it was lost.
"I was absolutely thrilled," he said. "With nothing but 'somewhere in East Munich' to go on, police could only promise to keep an eye out while on the beat."
Police said the incident was not unique.
"We get this sort of thing all the time," police spokesman Christoph Reichenbach said.