We don't know if he was looking at the girls. We don't know if he was looking for something to steal.
Then call the police, you know, those funny looking men in suits that drive around all day solving crimes like illegally firing a weapon in city limits? You just destroyed almost two-thousand dollars in sophisticated hardware in pursuit of some purile fear that the puritanical sanctity of your women or your property was being absconded with.
Its the 21st century. every public pool you go to has video cameras. Every mall, every ATM, every public space is teaming with them. your phones, your xbox, and your computers and even televisions. you can reasonably assume these devices are watching your daughters, your property, your life but youve never turned a loaded weapon on those. If were to digress to a civilization of opening fire on whatever confuses and annoys us, then the next drone project may as well be the gun-drone on slashdot a few months ago.