In my city, if you call 2-1-1, you get the Crisis Helpline that can put people in touch with all kinds of resources. Here is their website:
http://www.211.org/ReferWeb/MainForm.aspx
If 2-1-1 doesn't exist in your city, then I would suggest you look in the front of your phone directory for the emergency listings to see if there is anything like social services, food banks or crisis help, etc. If that doesn't get you anywhere, pick any big church out of the phone book and call them - if they can't help, they may know who can. Or the Salvation Army too.
It may take some diligence, some trudging but I believe help is out there. Good luck and let us know how it goes, okay?