Save-A-Lot review: rude cashier

I was in the checkout line and the cashier was VERY VERBALLY RUDE to a handicapped black man in a wheelchair. She threw his groceries in his wheelchair cart and when he asked her where to get bags for his groceries she yelled and said "I need you to pull right over there to that counter and bag your own groceries!" Then when he asked her where to put his cart after he was finished she said "Well, Some people are kind enough to put the cart back where they found it but just put it wherever will suit you!" And he said "ma'am I was just wondering where the proper place is" and she interrupted him and said "PUT IT WHEREVER YOU WANT!" .. I have never seen such unnecessary rudeness, especially to a handicapped individual. Very disappointed!