He moves quickly into a crouched position at the edge of the roof and adjusts the dials on his rifle scope for a close encounter.
Steve: Who are these idiots? Driving around without a care in the world. “Hey, look at me! All you can eat buffet right here!”
He tries to calculate how long they’d last when the assembled masses are alerted to their position and wonders if he should do them a favour and fire a warning shot across the bonnet. It was probably a waste of ammunition though, saving them this one time would only prolong their eventual demise, as their obvious unsuitability for survival was evident.
He listens intently and can tell that the central crowd still hasn’t moved yet.