good question.....we has been experience before.it will be depend to the installer how there do it. but the correct way is arm the alarm then the engine still running after just switch off by the timer.
RIM MODEL : ORIGINAL TOM'S VIOLENT
LUGS : 05 LUGS
PCD : 114.3
OFFSET : +45
SIZE : 17x7jj
COLOR : METALLIC BRONZE
RIM CONDITION : USED but EXCELLENT LIKE NEW (SELDOM DRIVE)