Authorities say that when Willis was stopped by police at around 6:50 p.m., she gave officers a New York State ID with the name Katherine Kelly.
After further questioning, she gave the officers her real identification, a California ID with the name Scout Willis.
She reportedly told the officers, according to the criminal complaint, "My name is Scout Willis. The first ID isn't mine. My friend gave it to me. I don't know Katherine Kelly."
Willis was released on her own recognizance and told to return to court on July 31.
She is charged with criminal impersonation and consumption of alcohol in a public place.