Response from Galen:
It's true that we did arrive late, but I contacted our host by phone shortly after we were supposed to be there. We delayed our arrival so that we could eat something, since there are no restaurants near the apartment.
Regarding the cleaning, I think we misunderstood what was expected of us. We washed the dishes, swept, and cleaned the bathroom, but did leave garbage in the bin and some food in the fridge. Alas, next time we'll know better.