There goes the neighborhood

When we bought our house, the neighborhood was quiet, clean and had no worries. So much has changed in the past 3 years.
2 of our neighbors have decided to rent their houses and move. The renter's have taken the street from quiet to noisy at all hours and from clean to a dump. Kid's ride their bikes while other kids try to hit them with sticks, a 6 yo has called my step-son a F***Face, nothing is offlimits. We now play "What will be in our driveway?" as we pull up to our house after work. So far we have found a rusty pipe, a broken planter from our yard, a shopping cart and last night, a crutch. Other neighbors have almost been hit by chicken legs flying over their fence (I kid you not) and have called to owners to complain but nothing has been done. Just a few minutes ago, my husband caught someone relieving themselves on the house next door. This was not a kid, but someone who looked to be about 35!
Friday nights seem to be the night where people drive down the street, honk and wait for someone to run out of the house, hand them something and leave. HMMMM......I am so ready to move but housing prices have gone so far up that we could not afford the same size house that we have now. Has anyone successfully dealtwith annoying neighbors? What did you do?

In knitting related news- I went to Skeins/HIlltop sale on Sat. and got some great deals on some Cascade 220 for a sweater to be determined, and found some cashmere/cotton blend for $2 a skein! I have also finished my OSW and started on Sitcom Chic. Maybe the knitting will calm me down.