I don't hate you for being a cynic, lady cop. As it happens I stopped seriously considering helping people stranded on the roadside after seeing
Henry: Portrait of a Serial Killer. Now honestly I'm not afraid that I'm going to meet a serial killer given the extremely poor odds of that, but even the risk of simple robbery just isn't worth it to me.
That said, if Abe or anyone else wants to do it I say more power to him. He seems to be aware of the risks and willing to take 'em.
I don't have anything to add to the suggestions above though. Water, blankets, jack, gasoline, flares... I can't think of much else a stranded person would need.