@andrzejj,
So let's get this straight.
You did something wrong, probably illegal and got caught by an off duty officer who you attempted to fight. She probably thought you were ready to kill her. So she restrained you but you kept resisting and fighting.
Now you want to get paid for your injury?
I say **** you. How about learn to be a civil person who doesn't pick street fights?
You deserved to get your arm or shoulder messed up, maybe this should be a lesson to you to stop being an asshole?
You want to be rewarded for committing a crime and getting into a fight? Sounds more like you haven't learned how to play life as an adult.