Car Alarms...WHY!!

Okay...so I live in a gated complex...but SOMEONE who lives here has a car with a car alarm. And that SOMEONE turns it on at night. And its been going off with only 60 second breaks since like 5am this morning!!!! Its bad enough I had to be up early for a teleconference....but to get up because of the damn car alarm! If the damn thing would shut it self off I'd seriously go back to sleep! And obviously the car has NOT been stolen because its still here with the alarm going off. And why have a car alarm and activate it if the owner can't HEAR it going off and go protect his car??