Can you be called in as a runaway for moving out at 17 years of age by your parent and be punished by the police even if your parents knew you were moving out?

Everything depends on the laws of the state. In the state of Maine, a friend of mine had a sister who ran away at 16 and her mother called the cops in hopes of her return, but the cops told her that she was older than 16 and they were unable to force her to return. I'm not sure of the other states but not all states require the age of 18.