I saw the screen too - I'm guessing that the maintenance screen is in response to the hack, and not normal transitional tweaking.
I wonder if any harm can be done by just visiting a hacked site? I clicked on and off immediately. I saw that it was a java hack of some type. I'm doing a virus/spyware scan right now just in case.
(I'm so snoopy I just couldn't resist looking - why do I do these things?)
eta: Thanks mrsyancy for posting the FB link. This happened at a bad time for Cathe!