2013 Explorer Limited Rear Dome Light Will Not Turn Off (Only Change is its Frozen Outside)

Due to the freezing weather I assume its a switch or sensor which is frozen up and not realizing the rear hatch is closed but I cannot figure out where the sensor or switch is?

Thanks in advance for any ideas...

Dave

 

Update:

I had my daughter check the light when she came home this evening and it was off...

On a different time setting suddenly than is the other lights which turn off Theater style a few moments after locking the door?

Thanks