It was literally one of the worst endings I can remember... walking about a small town as a bus drives by or something. Like what the fuck.
I used to subscribe to the 'no stupid questions' school of thought. But having been in the army, and now teaching this trade, there are indeed stupid questions. Like, I'd rather you ask before crashing my machines, but the fact that you are asking this shows a fundamental lack of understanding the basic concepts of something you supposedly learned a year ago.