Trashed "cottage". Utterly disappointed.

Trashed "cottage". Utterly disappointed.
My mom and I booked a cottage at the lodge for one night while passing though the national parks on a road trip and we were able to easy book a room over the phone, the staff at the front desk were very nice and the park is beautiful but other than that we were both beyond grossed out. (side note- we received the great walk in rate of $242 inclusive of taxes).
We arrived shortly after sunset to our cottage and the light was on (we assumed that it was done by the park staff because we arrived late- they say it was not them). Upon entering the room we found that the beds had been laid in, there was an almost empty container of Arizona tea on the table next to the coffee maker and a plastic cup that said "2 shots" on it, the soap was also used. When we called the front desk they seemed confused as to how that could be and apologized profusely, we went back to the main lodge and they gave us different room.
It was very late when my mom and I began to unpack our bags in the new room but this was even more of a disappointment, the room had not been cleaned at all! there was trash everywhere under the cover of the bed sheets and the bathroom had not been cleaned well in a while it appears.
The next morning when we checked out I mentioned this to the staff and they said "OK", and after I showed the photos I took they said we can speak to out housekeeping staff.
I am only sharing my experience to that you do not suffer the same disgusting fate as we did.