Tape a note to her car saying "if your alarm continues to go off during the night and you don't turn it off I'm going to smear shit on your door handles".

If that doesn't work, follow her to the store and take a baseball bat to the car next to hers leaving a huge dent on the side. Then knock out her headlight on the BMW. Leave a note stating "I'm sorry I hit your car with my BMW when I parked next to you, next time park your piece of shit a little better and leave more room, here is my tag #"insert her tag number here".

The end.