Kelly Scranton

At 12:30 this morning, my car alarm went off. Not a big deal, except the disarm button did nothing on two different keys. None of the button's on the fob would work. My boyfriend had to remove the emergency key from the fob to try and unlock the doors to disconnect the battery. As soon as he tried opening the door manually, the alarm sound changed and we could turn it off with the button. Has anyone else had this issue? I'm worried it will happen again.