This hand written sign contains no typos or spelling errors, as is the theme of this site. But a sign like this makes me ask if the person who created it genuinely believes that the owner of this vehicle was aware that their alarm was going off and deliberately chose to do nothing about it. How selfish is it for someone to be blocks away from where they parked their car, far enough away that they can’t possibly hear their own alarm. Even if they are within earshot how likely is it that they would even recognize the sound of their own car alarm, wailing in the distance? I guess it is tempting to imagine that the source of your irritation as someone who derives satisfaction from intentionally setting off a car alarm and basking in the noise it creates, savoring the irritation it causes. I suspect that in a majority of cases where alarms blast off interminably the owner of the vehicle is blissfully unaware until someone calls 911 and the police get involved.