Not on Labor Day weekend! Their show is M-F. It would work!
I hope 9/3/11 is her Announcement Day!
It won't matter. Inquiring minds (and eyes) will be watching those two like a hawk.
Trust me, there will be reporters tasked with staking these guys out to see if they leave town. The media will spare no expense to break through Palin's security and get the scoop on her announcement.
Unless Mark and Bob can find a way to sneak out via private air transport, with no one seeing them, they can't make a move without someone tweeting it to the world.