I agree with Andrew, you've offered twice and they've declined and have instead expressed concern for your daughter.
I think, if you want to do something to show them that you feel terrible about the door, that bringing these good people something homemade, such as a pie or casserole for example, will mean more to them than a supper at a restaurant. These seem like good hearted people, and I believe that instead of any monetary value in a bottle of wine or meal at a restaurant, while both are nice and mean well, they will instead see the thought, care, time and heart that was put into making and/or baking something to show how you feel about the door. Just my opinion
