So gassed up yesterday before work. Got home, changed to go out with my gf for valentines day. Randomly when i was driving down a back road my car dies. No sputtering or anything, "flick of a switch" and everything just died instantly. Tried turning it back on while it cruised onward and wouldn't crank until the third try after throwing it in neutral and it fired back up. Same thing happened later when i was at a stop light. Took the foot off the brake and it died instantly. Then got into my car later that night, shut the door put the key in the ignition and all power seized and my key was stuck in the ignition. I opened the door and closed it, and power came back on the interior lights and i could start it again. It also died when I pumped my gf's gas for her car and my car was idling. As well as when i got home. Turned the car off, power cut, and key was stuck in the ignition. Couldn't get it out unless I opened the door, then shut it again.
I was thinking bad gas at first, since I just filled up prior to all of this happening and it cutting out while i was driving twice. But the other occurrences have me stumped. I'm going to make sure the terminals are tight on the battery when I leave later. Hopefully it doesn't happen again since I'm going up to the Chicago auto show today. Any thoughts?