Me suspects that YOU were checking HIM out! Why else would you recall what he was driving, what he was wearing AND what he was doing? You sound like a sleazy douchebag that is always looking to score everytime you go out!
How would I be checking him out when he was the one who drove past me while I was walking home? He initiated the situation, I just ran with it. I remember it because it was a major situation, I remember things like that, in fact I remember pretty much every similar situation as well, because it's something really impactful, at least to me. It's something that makes me think, when I do think about it, which generally is when I'm reminded of it by something else.
Also, I probably could score every time I go out, but that isn't what I go out to do, plus I like to get to know a person first