This happened to me twice. I'm at the gas pump, I 'm waiting for the car in front of me so I add my fuel additive. Its not mixed yet in the tank so I put it in neutral and roll the car up to the pump. Gas up, get in the car and the radio and windows don't work.
Go home pull fuse 9c Accy, radio, etc put it in and out a few times, then the Rad. & windows start working. This time I cleaned and tightened the fuse socket and applied dielectric.
Why after rolling the car? Strange......