All you'd be doing is fueling the fire.
Instead of making your yard look bad, make theirs look bad, and not by sabotage. Trim your bushes, paint the fence, pressure wash the house, add a statue or fountain with a flower bed, put your best vehicles in plain site. Take your flags down except the American flag and state flag. Redo your driveway to where it looks like stone.
A man's home is his castle. Might as well make it look like Buckingham palace. Then sell it because you don't want to be with the riff raff.
Or, you can take their report into consideration, make a few changes, and live in peace with your neighbors.