Just a thought on the gen light - on my firebird, if you turn the key all the way to the left, it's on "accessories", but the key can still come out. I have to take the key out in the full upright position, this is the off position. It's possible your car is the same way. It will drain your battery if the ignition switch isn't off.
'68 Firebird, 350-4, 2 spd auto, triple black, Dlx Interior