have you checked with student services on campus? They may be able to assist you.
Also check with the united way - they can assist by locating organizations such as food pantries and communal dining halls.
Organizations like Catholic charities, St vincent de paul, and community action organization may be able to assist with food vouchers to local stores. I have their links on my home page as well as a lot of other organizations that may be able to help
I also found this site for local resources that may be able to help