I try to schedule way in advance and almost never have a plan B, because most of the time I am not nocturnal anyway and second, unless I have seen you, it perhaps doesn't "feel right". Not even sure it feels right if I have seen you, but that's just me.
As has been suggested above, I would likely beat a retreat to the AMP scene or go back to my friendly computer and try to get something hooked up the next day ( cancel meetings, golf, all that s-it that is not relevent)