I tried! I would like to know if the family has gone that route. There's no way I can get there when they're open as I have a full-time job (knock on wood!). But I'll send an e-mail and Steven's poster if it hasn't already been covered.
I think you've done it well, already.
You went to both DIs, and left flyers. Right? The one on Tropicana doesn't have a welfare center; the one out on Craig does ... and you described that area.
Even IF you didn't get into the welfare offices out on Craig, he'd still have gone through the checkstands in the DI to present the form as "payment" for whatever clothing and household items he drew out.