I managed to get the fret board off the neck using a heat lamp, cost me all of 5 bucks. I decided to replace the neck however, just to be on the safe side, as this was for a client. I too believe it was just a clamping error. This time around, I glued the fretboard on before shaping the neck, and it came out perfect! Only really lost a couple of days, and that was only because of glue dry time. (normally I like to shape the neck a little first, but due to this experience, I think I have a new method.)