Discharging a firearm in a city or near a highway is a crime, as well as being unsafe and irresponsible. Shooting from a vehicle is also usually illegal and there may be other laws specifically for firearms that they be charged with too such as possession of a firearm when committing a crime.

For example robbing a bank is a crime but robbing a bank which a firearm is two different crimes and if you show the gun that can be brandishing which is a third. For this reason, and because bank tellers are told to just hand over the money which is all government insured, most people rob banks by only passing a note to the cashier and not having any weapons at all.