Good to hear it was just a dead battery like I'd (and a few others) said. I would've left it on the charger longer as it wasn't fully charged yet when you pulled it off. But you can hook it back up when you're back from your Saturday trip and get it fully charged.
Must say I'm still a bit confused as to why you're going to sell it and go Japanese. $5,500 buys a whole lot of parts for that car, and that seemed to be your big concern is not having to drop $ on parts.
Cosmos Black/Black 1995 540iA M-Sport
BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build