I just checked out that National Re-entry web site. Oh lord, as a web designer I just died a little inside. I tried searching for information and it just gave me pages of PDF internal reports about jail management etc. Literally nothing that would get me food or say, some winter boots.
The problem I've got is that my immigration status was screwed by the incarceration and my SSN is currently invalid. I can't get any ID and I can't access any government services until it is restored. I'm supposed to be in immigration jail until my green card is reinstated, but I talked to an ICE agent and they say I am super low priority as long as I stay out of trouble they won't come after me.