nosuchreality said:
You'll find it more effective to harass the store. Send a letter to them and their corporate office saying you're not comfortable and feel unsafe due to the uncontrolled pan-handlers that are eratic, confrontational and unwelcomely approach you and your children.
Inform the store you will shop elsewhere due to the unsafe conditions and then get your neighbors to do the same. Organize an Facebook group off people to announce their intent to boycott the businesses in the complex due to the panhandling, etc.
I like this method. Although it only puts a band-aid on the overall situation, this will probably work at the Culver Mitsuwa.
Solutions start locally. Here is their website to complain about the beggar.
http://www.mitsuwa.com/contact/
Dunno if it will work. But give it a go.
Here is what I wrote:
I recently visited your supermarket in Irvine on Culver Dr. There was a women with a child begging for money in front of your store. I did not feel good about going to your store with this women there. I do not want to feel guilty everytime I visit your store. Stupid Phil Collins begins singing in my brain. I have seen her there on multiple occasions. Please help.