Sunday morning it is not open.
Nor on Monday...
Update: (October 25,2010), it has not been open since Oct. 1, when the pattern was first broken!
Update: (January 12, 2011), it has not been open since Oct. 1.
Update: (July 20, 2011), the door was found open on only 2 separate occasions since the last update in January.
Update: (January 28, 2012), No further activity.