Nice try. I paid attention to the commercial the last time I saw it and the invisible guy never picks up a shirt, he just runs to the door in his socks.
Actully your wrong. YOu must have seen the edited commercial. In the full one he does pick a shirt up and throws it over himself in an attempt to put it on and when he gets to the door it is gone. The edited commercial just has him jumping over the bike and then the door is open to his mother. The full one has him jumping over the bike and running (or sliding) to the door and he unlocks and opens it. It's an old commercial so it would be cut short now.
They did a great job of digitally editing out all the non-clothing parts of the ad but when they are in the kitchen with her legs wrapped around the guy, his hands are visible.
That commercial always annoyed me because at the end it focuses on the bed for all we know we're watching invisible porn!! But the commercial is pretty cool.