I've got "shizzy" neighbors. Drug addicts, welfare mom, etc. she would pump up the volume full blast in the mornings, with two little kids in the house. My walls would vibrate from the boom-boom of the bass. Complaints from neighbors did little. (Cops have been there many times, she's been arrested a couple times for other reasons.)
I got fed up. So every time I'd hear the loud music, I would stand by my fence and point an air-horn (the type for sporting events) towards her open window a couple feet away and let loose some loud blasts. The loud music stopped after a few more times. Fight fire with fire.
I'm glad it went the right way for you, but a ding-bat like that might have her latest baby daddy come over and worse case take a shot at you like in the story.