Have you checked to see if your local center/hub has a position open for package handler? That's a good place to start, if you can deal with the hours of preload you'll make a dollar more an hour as opposed to reload. Hope you can work something out, just be patient and persistent, they don't know you wana work unless you tell them, if at all possible go talk to the preload & reload sups one day and tell them both you'd love to work their shift and ask if they have a position open at the moment or if they will have a position open soon.