Handicapped person vs Handicapped attitude

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I recently visited a mall restroom right from work and needed to really freshen up before I actually moved around the mall. So I washed my face and proceeded to brush my hair. They had this wierd sink and I noticed I had splashed a lot of water around the sink and being a considerate person, I actually took some tissue and wiped around the sink. Then I saw my hair all over the counter and put my brush down and picked up the hair and wiped up there too. Anyway I was alone and also I thought it was the right thing to do. Then this attendant walks in and I smiled at her but she just looked at me and then at the floor and there were a few drops of water there, she began to mop it up. Then she actually pointed to some strands of hair on the counter and signalled me to discard them - without even a smile or politeness like I had a responsibility? Is that audacity or what? I noticed she was speech and hearing impaired. I was being considerate on two levels - one that she is stuck doing a menial job and two, that she is hearing impaired and there she was showing me plain old arrogance. I was taken aback and didnt say anything, but how do you react to that?