I'll tell y'all what an old First Sergeant told me a long time ago, "You cannot get through an entire day without violating some regulation or the other. It is up to me as to whether or not I am going to institute proceedings under the UCMJ against you."
Now, he was referring to Army Regulations, the UCMJ, and the Manual for Courts-Martial which are a lot simpler than the maze of federal, state, and local laws that most of us are faced with every day.
All of that said, the odds that you (general "you") have committed, unknowingly, a felony sometime during the course of a week are quite excellent.
Given the circumstances as OP outlined them, I cannot fault the young woman for allowing the police in to look for the bad guy. Had OP been home at the time, I am confident the story would have been different. I am also confident that he is going to take steps to insure that the young lady's safety is far better assured than it is at present.