Very scary stuff Bob! I'll pray you can go back home soon, and all is A-OK.
Did you leave a sprinkler going on the roof, or in the yard? I have heard of some doing this to prevent embers from starting a fire, even if the fire is still quite far away. I suppose that would be an advantage in staying home, in that you could hose down the house, yard, and surrounding landscape. Allowing that you could still breath of course..