any water is better than NO water!
yes, bottled (or even tap water) is ok
in an emergency..
the problem with tap waters and bottled water is the minerals..the "hardness"..
the minerals build up over time..(weeks-months)
thats why you cant use tap water long term (weeks-months-years)
because the minerals will eventually harm or kill your plant.
but for a few hours, or even a few days, ANY drinking water is fine..
just flush out the pot when you get your "good" water..
("flush out the pot " means take the pot out of the tray, dump some of the good water into the top of the pot and let it run out the bottom onto the ground..this will "flush out" any trace amounts of minerals from the tap water..)
using tap or bottled water for a few hours will do NO harm at all..
it takes weeks/months of continuous tap/bottled water use to harm a CP..
in a water emergency, its perfectly fine.
no need to bring them inside, no need to put them on a windowsill..just leave them where they are and give them a bit of bottled water..enough so they wont dry out until you can get the distilled..
Scot