I've seen it done from across the street. He was a big one (messenger) though maybe the driver leaned back from fear. I've done all the glass surfaces as well, wasn't common though. Jesus Built My Hotrod.

This is why I leave my U-lock at work, it can become too easy to dispense U-justice. Each use takes a bit of your soul until you find yourself to be a road raging lunatic not too too unlike the evil cab drivers you seek to vanquish. I currently attempt to carve the abyss in a heightened state of Zen Courier where a car must fall straight from the sky to get me. Where I feel the air move around me, before the bumper moves. These are not the cyclists you're looking for.