The shopping carts are beyond disgusting. I don't think they ever washed them, and I've seen plenty of janitors use them to hall away garbage early in the morning only to return them to the cart lines in the stores without doing anything else.
Ick. Fortunately I've never used shopping carts there mostly because it's always been too crowded to navigate with a cart. It's much easier to grab some pickled cucumbers and leave as quickly as possible. But I'll try Zion next time!