Mystery alarm
 

Today I came home and locked my car in the garage as usual. When I came into house to prepare lunch, all of a sudden, I hear the alarm going off for my 2019 NX350. What the HECK!
I race out to the garage, open the garage door, and see my car sitting inside the locked garage is going crazy. All I had to do was push the alaram button on the key fob, and all went silent. But what happened? anyone else with this kind of crazy issue?