under cover

Master has business in la this week. He had to drive his company van so he doesn't have his car. I had to pick him up at the la police station because something about the servers were not working. When I picked him up he said baby I need to tell you something.. I'm am undercover cop. And I said Omg no way I totally knew it! Then he said just kidding. Now I don't know what to believe.. I feel like he is.