What I am trying to say is, it just does not look like someone took sandpaper to it to harm you. The marks look more like something was passed by on it, such as a bag.
You should report it within 24 hours. Some insurance companies waive your deductible depending on your coverage and if reported in time. If you are not claiming it, I wouldn't report it.
I cannot think of any alarm that would go off for something like this. If it was that sensitive, it would go off every time a bird chirps, or a bug crawls on it.