Not to put a damper on this, but my creep alarms are going off just a little teensy bit.

The way you were dressed would be evidence that you were out on a bike ride that day.

Him knowing that you were car-free could mean that he's seen you out and about, noticed you cycling at least more than once.

Not a bad thing, in and of itself, but, I don't know. If the later is the case, I would be a little wary if you see him around again.

I could be wrong. I'm a weirdo magnet, so I'm probably just jaded.