Wow, for a minute I thought you were my neighbor. He works for a landscape company and brings home a broken down old truck that leaks oil all over the street- where he parks it instead of his driveway. He is also prone to playing very loud rap music and having LARGE open pit fires, which are illegal, and they pour gas on them; once they set their yard on fire.
I call the police on them once in awhile- when i just cant take it anymore and my 4 year old wakes up at 11pm when the music is vibrating her walls. I used to walk over to their house and ask them to turn it down, but after 3 times I feel they just arent considerate of other people. All of our neighbors cant stand these people.
As long as you are not that person- as long as you are not doing anything illegal and against association rules then I think you would have a good case. You could also try to talk to her. I know- it seems so simple. You could invite her over (and not be mean), but ask her exactly what it is that you are doing that is causing her trouble and let her know that you want to get along. If you are really looking for a solution and want things to be right this is your best step. If she refuses to talk to you or becomes rude and agitated you might consider mediation. Also you can contact your local police department for ideas of how to solve the problem.