Sorry but as a parent sometime u can't stop what they do no matter how good a parent or how #OOPS#ed up a parent you are, you make your own life!
I was brought up in a good family but had a mid lead child hood at times and did some silly stuff but I saw the light!

NOT saying it's the right of the kids to do this to any car or anyones property! It's not right to do!

As for cops unless you can prove its he says she says!!
CCTV is a big thing these days maybe set a camera up like a $20 one and face it toward the car! Even if not hooked up still makes it looked like it being watched!

My car is parked in drive, I have lights on the house, at the same Time a cop lived with me, my tools got lifted out of my ute, so can also happen anywhere anytime!

Still don't scratch the datto