What happened to the little sluts for their crime?
I don't think the article says. Probably nothing. It's possible the two girls never admitted doing property damage -- the article says only that "someone" threw an object that broke Sgt. Mott's door ("...she and her friends fled from the scene of a Mischief Night prank in Phillipsburg, police said. The incident began after someone threw a corn cob at Mott’s front door and broke the screen...")
I'll email the reporter and post his answer if he replies.