There is some speculation out there that the Perkins Restaurant and Bakery in Bullhead City has also closed, however a phone call to the location confirmed that they are still in operation.
This is all very reminiscent of the morning when every Arizona Krispy Kreme donut shop closed suddenly in 2006, with employees and patrons being locked out. Thankfully, Krispy Kreme came back after a few years. Will Marie Callender's do the same?Update (6-17-11): Just for even more confirmation, the owner of the Perkins in Bullhead City has stated, "We're not going anywhere."