So serious question: Are acorns/black walnuts capable of this sort impact damage (2 impact points with close ups) and can they completely shatter an entire car windshield like this or was I targeted and attacked by vandals?

Vandals!

I'm praying that's not the case but I am worried I was targeted for flying an American flag at my house. But I will certainly know if it happens again with a new glass. All the same I think it's time invest in a camera and flood light that points at my driveway.