My sponsor had the experience of setting off in his car to go shopping, work, or visits someone, and coming to in the car park for the bottle store. Not drunk, just that the car seemed to go on autopilot. It seems these thoughts can be so subtle they are almost unconscious. I had a similar problem when I first tried to stop. Seldom got past one day, and often found myself drinking with no memory of how I got started.
The only thing that seemed to change that was when I got serious about the AA program.