Set the garage pir attributes up as a "Final Exit". This way, when you open the garage door, you'll start the entry timer and you can unset the alarm with the fob.
You're not supposed to be able to unset the alarm from outside with the fob. This stops you from accidently unsetting the alarm as you put your fob in your pocket when leaving.
You're not supposed to be able to unset the alarm from outside with the fob. This stops you from accidently unsetting the alarm as you put your fob in your pocket when leaving.