Blaming the customer for theft

This morning my mother dropped her rental car off at Avis Roodepoort and mistakenly left her purse in it. I returned her to Avis 10 MINUTES later only to discover that her purse had been emptied of everything - money, cards, even *******. When she spoke to the woman at the front desk, Tanya, my mother was told that it must be her own fault because it definitely wasn't anyone from Avis who was responsible. There was zero compassion for a woman who had just had her purse violated. We understand that Avis cannot be held responsible for the theft