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In the middle of a stormy night, emergency medical responder Zoey is dispatched to a busy mountain road. It seems that a delivery truck has failed to clear a tight curve and has tipped onto its side. The driver is conscious but unable to move. The truck is situated halfway into the road, right on the curve, and is blocking one lane. What steps should Zoey take to keep herself, the truck driver, and others on the road safe while she attends to this patient?