HelloCustomerand welcome to justanswer.com,
Have you tried the master key in the driver's door lock and turning it to unlock?
Are the batteries in the remote good?
Is this an EX ? Si?
I am going to check the wriring schematic to see if there is a fuse you can pull temporarily while you are able to bring it to the dealer.
Unfortunately there aren't any fuses totally dedicated to just the alarm.
Pulling the fuse will disable too many other things.
The option I see is pulling the #12 fuse 15amp for the horn and stop lights.
Then take the car immediately to the dealer to have it checked out. It will probably be a control unit issue with the vehicle and should be covered under warranty.