The cabin filter was packed completely full so we changed it as we knew Joan was pressed for time. We always do a very thourgh job a mistakenly thought we did the right thing. Nor keeping the cabin filter clean overworks the blower motor and causes it to fail, which is much more expensive of a job. In 25 years, I have never had a client not want there car maintained properly so I do apologize for not getting prior approval. I was just trying to expedite the service so she could get on with her day.