Fluid.. I don't know you. I'm not judging you. But, obviously you've never been in a situation of heightened stress. Cops are trained to take a bad situation, and attempt to end it, with whatever means are needed within reason.
"... broke the skin later"
Um... if it were going to break skin, it would have broken immediately. I've had skin broken by MANY things, and it's immediate, it doesn't happen afterwards. Sounds to me (and may sound to others) like you were playing with your wounds to increase their severity for more money. I'm not saying you DID, I'm just saying how it sounds. I've also had friends who have had stickfighting matches (rattan sticks, Escrima for those that know their fighting arts), and the bruises THEY had, with padding, were much worse than what you have in the pictures. Hard head or not, if you had been hit with a solid MagLite, you'd have been split open pretty well. Don't get me started on their batons. If this all went down the way you said it did, attempting to turn around on the cop was a VERY bad and VERY stupid move on your part. What's to indicate to them that you're not trying to attack them? You also state that the bruises are green. They weren't very deep bruises. If the type of force the cops use in these spots was, in fact, used, you'd be a shade somewhere between crimson and purple for a few days before turning green. Looks to me like you got into a bar fight and lost, getting smacked off the sidewalk on your way out.
To the one who "disarmed" the cop, I want to know what he was carrying, the type of holster, and what you did to "disarm the gun." I seriously doubt your story. Also, your dad being a SEAL probably wouldn't like the idea of you going around bragging about it. Go tell him the "piggy" phrase, and, if he's truly a SEAL, with the honor and respect they have, he'll smack you so hard you'll wind up in next week. He should also place you into a better school. Your English is atrocious.
