I left my key fob inside our 2013 explorer sport, locked sport using our door lock on the drivers side - no chirps. Generally, we receive two chirps and the sport does not lock, yet this time, it locked me out. The keyless entry was has not been setup. Just curious if anyone else has experienced this computer glitch - we have owned the car for 3 years and have not ever had this issue. Upon further testing, we could not get it to fail again.