Mustang Boards - Car alarm isn't working

So I was leaving work yesterday and when I went to unlock the car it beeped and everything like it normally does when I lock and unlock it. So I'm driving and I notice the blinking red light is now just on all the time. I go to lock my door and the car locks but the beep is gone and the light stays on instead of blinking like before. Anyone got any ideas? When I get home today I will try and set the alarm off to see if it actually goes off. It's weird that it would stop making the beep noise when I lock/unlock the car.