Made StopMap and Timetable show when errors occur

I saw you, Walt Whitman, childless, lonely old grubber, poking among the
meats in the refrigerator and eyeing the grocery boys. I heard you
asking questions of each: Who killed the pork chops? What price bananas?
Are you my Angel? I wandered in and out of the brilliant stacks of cans
following you, and followed in my imagination by the store detective. We
strode down the open corridors together in our solitary fancy tasting
artichokes, possessing every frozen delicacy, and never passing the
cashier.