What are normal searching procedures for a police officer?

The other night I was lost in a neighborhood I don't know with my phone dead and my

parents called the cops to help find me. It took them forever because it was dark. I wasn't trying to avoid them I was just wandering around trying to get back to the main road. Finally one pulls behind me so I stopped. He got out and told me not to run and he was PISSED. He got me to put my hands on the car and 'searched' me. I can't remember it that clearly but I know he didn't go in my pockets and I don't think he touched my upper body. He did rub my butt, all over my legs, and touch my crotch thoroughly twice. The second time because I squirmed the first time. He said oh what are you hiding there? And I said nothing and he said then why'd you move or something. And did it again. Wouldn't he have looked in my pocket if he was really worried about me having drugs or especially a weapon enough to grab my crotch. I know theres nothing i can do about This, he said we weren't being recorded and said next time he has to find me like that id probably get a beat down or something. i just want to know if he Did wrong or if that was normal. I'm a male minor I don't think the state I'm in matters. Oh and if there was a hood camera it wouldn't have seen below my belt and there was no human witness that I know of.