Wait, didn't he have a gun?
When those bumbling police officers came aboard the bus and asked for the main character's identification, he smashes through the window and gets into a wrestling match with one of the officers.
They fight over a gun, the officer is shot, main character takes gun and runs into the forest.
At least that's how I remember it. Maybe I blinked a little too much on that scene but I swear to Bob that he took that gun.
Am I wrong?