I have guests right now that came in after quiet hours, which is totally okay! But they are stomping and yelling, there was a big crack and now they are complaining that the bathroom door is broken.
being a host or a landlord is not easy. You have to inforce your house rules and be in control. Go there, make a photo of the broken door and file a damage claim. Tell them your quiet hours and say you will have to cancel their stay if they will not obey your house rules.
Additionally, I would like to advise to call Airbnb immediately while the guests are still in the listing so that they can mediate and, if necessary, assist you with inviting the guests to leave if house rules have been broken. Always try to document by way of pictures or videos.
Do not forget to inform the guests through the message thread so it is properly registered that you communicated with your guests.