Folks need to remember that it is illegal to interfere with a business, the statutes need to be looked up in every state. Harassment can be shown by the persons actions here. Stalking also plays a part. Follow that thought and build a case in all states where needed. Harassment/Stalking statutes can be used to get police involved (Often there are crimes). You would be surprised how helpful those statutes can be to defend/attack as needed.