Where did the man leave his glasses?

Man: Oh, no. I don’t have my glasses. I think I must have left them on the desk in your office.
Woman: I’ll wait for you here while you go back and look for them. Here, you’ll need my keys. My office is locked.
Man: OK, thanks. Hold onto my briefcase for me, and don’t wait here. I’ll catch up with you at the car. It will only take me a minute.
Woman: All right. I’m parked right across the street, in front of the post office.