This morning I've arrived at work all right, can't say I'm awake though. Luck has it that I've come used to going this way each morning and arriving at work. I've come here on auto-pilot. I can't really remember what made me stand up before the right bus stop, but that way I got off all right.
It sometimes works the other way too: I know I should go buy something on the way to work. I start out... and then, when I arrive at work (or some other point slightly before that), I kind of "wake up" and remember that I should have stopped at the store. The automatic system got me there.