I am very lucky. My parents watch Keegan for me and when the time came up that they were going to their cottage while I was going to be away for a weekend, they just took her with them.
This is also one of the reasons I haven't gotten another dog. My mom ~not the animal lover~ can't take more then one dog in the house at a time.
I think having your friends stop by and your father in law is the best idea.
I agree with Diana, having met your dogs, I think they would do much better at home.
Good luck!