How long can guppies survive without air pump, filter, and light?

My power's been out for close to 30 hours now, and i'm staying at a friend's house. I have a 29 gallon tank with about 40 guppies in it (we're getting a new tank next week.) We called PSE&G and they said our power won't be back on until probably tuesday because we aren't a "priority area". bullcrap. will they survive? what else can i do?