First time LAPD didn't have trigger fingers?
It is really hard to believe in the final sequence that the LA Police could restrain not letting loose with their guns. They aren't known for that much self-control.
But of course this is just a movie and Kyle is white and one of the stars so I guess we have to allow for some fantasy to leak in.
How they would have let a cop killer (at least that's how he would be perceived by the rank and file of the police there) just go free is beyond me though. You'd think his hospital room would have been under extreme guard. They'd want to make sure he stayed alive and healthy until they could fry him in the electric chair.
So there wouldn't have been much way he could have just up and left his room and walked down the hall like that. Kind of ruins the ending though unless he can.