What I've done in the past when I leave for the weekend or a few days, I make sure they have more than enough food and water. Even if its way too much food and water. I put their food above grond so that mice cant get to it. But you're gonna need something were only their heads fit or else they are gonna dig and dig untill all of the food is all over the place. Same with the water. i have like 2 or 3 water buckets and i put their water buckets screwed into the coop or a solid piece of wood or i put bricks around their water so that they cant tilt the water bucket and spill the water. They'll be fine for just the weeken as long as they have shelter from rain, predators, and sun and plenty of food and water.