Parking lights, interior lights, fan won't turn off
 

My 2003 Z was parked outside today for about 4 hours while I was cleaning out my garage. I pulled it into the garage when I was finished.

I turned the car off, removed the keys from the ignition. My parking lights, radio and interior lights all came on (they were all off before I removed the key). I thought maybe I accidentally bumped the lever with the headlight controls on it, but then I realized that wouldn't cause my radio to come on. I checked the lever anyways, and sure enough, the headlight controls were turned off. I pushed the radio power button. It turned off, but the lights on it were still lit, as were the ones on my gauges.

I got out of the car and heard the radiator fan spinning, making a horrible noise. I popped the hood and disconnected the battery, waited about 5 minutes, then reconnected it. Everything was fine. I cranked the car again, then turned it off. Everything was working like normal.

Has anyone ever had this happen before? One time glitch or serious electrical problem?

Sounds like a voodoo curse man, does someone really hate you?

Seriously, that is the weirdest thing I have ever heard.