And another step in juvenile delinquency

Friday I went out with some friends into Atlanta for a movie. As I pulled out of the garage, I noticed Eldest and Fred were out and watching me leave. They made no gestures nor did I hear them call anything out. Most likely because Goof was watching them from the front door. Soon after Goof and Stinky ran an errand. As they left the cul de sac, they took notice of the boys at the street corner. When they came back there was a huge rock wedged into the small pot hole in the center of the opening onto our street. Goof had to stop quickly and swerve around it, or risk his undercarriage and tires. The boys were laughing uproariously over this. He called the police. By the time the police came 10 minutes later, they had run out and moved the rock. Goof had the video feed queued up to show the police. They declined to look at the video, but spoke to the boys and I am assuming Babymama. As far as I can tell neither boys have come out to play in the street since. Now Babymama has called the police on us several times. Each time it was regarding something on our property and well within our rights as home owners. This call we made against them, had to do with malicious intent off property. From what Goof said, the rock would not have hurt my undercarriage as my car has more clearance from the ground. I may have damaged a tire or the suspension if I rolled over it in the dark. Enabler's car could have been damaged or her adult children's cars as they don't have high ground clearance. Again, this is escalated violence from Fred in direct correlation to Babymama's actions and words against me.
Was Babymama really upset that Stinky said 'hell' or was it because he used the term 'fatass'? Now swearing is unacceptable, but I tend to also think that her self esteem is pretty low, and hearing a child say that does not make her feel better. Of course it's pretty darn disrespectful for a child to yell at me to go back in my home also. Fred is just parroting Babymama. He's a bright boy, but he needs to find some positive role model, and urge within himself to change and move towards the positive, not sink in despair and anger towards others for what he does not have. I don't know if he's heading towards a dangerous, and illegal life, but for certain his actions are encouraged by Babymama's attitude and choice of actions and words. I certainly feel bad for his grandparents as they are trying to be a positive influence, but again it's up to him to chose the correct path.