Parking your bike in Tokyo, Japan is so high tech! Check out this automated bicycle parking tower (capacity 9,400 bicycles) : Hit play or go to Link [YouTube, in Japanese but you'll get the idea] - via treehugger, thanks yoshi hashimoto!
Previously on Neatorama: Volkswagen's New Car Storage Facility
http://www.engadget.com/2007/08/15/the-automatic-bike-dispenser-like-pez-but-good-for-you/
I was waiting for them to put a camera on the bike, and they finally did.
I thought the same thing about it screwing up somehow, and somebody getting stuck with the wrong bike. How do you argue with the machine?