I have users who are asking for a vacation mode

I have users who are asking for a vacation mode in marketpress.

As a workaround i am going to have them disable their payment gateways, and use a pop up or page to tell customers about the status.

I would like something more elegant..
So the store owner clicks a button to put store in vacation mode...

I guess this is a feature request...

Maybe i need to write my first real plug in Hmmm....

Thoughts or suggestions?