I've had my CPO 08 XK for 3 days now. Tonight, i noticed that my parking lights were on when I returned to the car. The light selector was in "auto" with no delay. I locked the doors using the push button on the outside handle. This is what I have done since owning the car but tonight was the 1st night that the parking lights were on when I came back to the car.

Any idea what's going on? I can't seem to replicate this again.