Speaking seriously about it; Definitely weird. As a man, if a woman did that to me, I'd take it as a hint that she wants me to take give some action. But no matter what, it's not the right place nor the right time at work! And if the guy is creepy, you need to watch him. Sounds a bit too forward to me, and he might do things more creepy than that if your guard is down.. Where I come from, real men don't do stuff like that to get womens' attention. Tell him he ought to try holding the door for you first.
Charles