I think wsbill may have made a good suggestion below and I wanted to elaborate on that.
I am not sure how your lady feel about her safety now, but If your lady kept her money and valuables hidden under her coat and out of sight and then carried an empty of fake purse that did not contain anything important then if some young criminals wanted to steal her purse she could feel better about giving them the fake purse.
It really reminded me of certain lizards that can self-amputate their tails if a bird swoops down to eat them. They let those birds have the tail and they get away.
I know it sounds kind of goofy to suggest she carry a fake purse but if she really feels threatened and thinks those same kids might target her again then it might be worth the little extra money to buy her a second purse.
Terrible that people should live in fear.
Good Luck in St. Petes I am sure you both will have a new appreciation for each other.