Do consider your coop size - I would hesitate to coop mine for a week. I do have a run, and I never coop mine for a week, once they find the coop and the run, it is obviously the best place to roost.
If you don't have a run, I would let them out, very late in the afternoon, it will give them some fresh air, and they won't wander a far distance in strange territory, that will encourage them to go back into the coop the 2nd or third day. Or even turning a light on in the coop, will help them go back in there. Just be down there, as dark comes on. If they roost somewhere else, they are easy to catch, and your can plop them in the coop.
Mrs K