Hoping to solve a mystery as to what caused this spotting and white stains on my cowl. Truck is Gtechniq crystal serum light coated. Went in for my maintenance wash and my detailer did a hand wash, iron decon and topped with a ceramic booster. I saw the spots after I drove home. A wash would not remove it and he said he doesn't know what could have caused it. Anyone encounter this? It looks like something dried on it during the maintenance wash to me.View attachment 75559