My question involves restraining orders in the State of: CA

I'm not sure if this is the right board so if not I apologize ahead of time. Today my friend's mother got mail addressed to my ex husband's uncle at her house which is my last known address. I fled a year ago due to domestic violence and have a restraining order here against my ex husband. I searched online to see if there was someone else here by the same name as a coincidence. I found that my husband, and his whole extended family (mother father, aunts, uncles) had changed their address to my last known address but are still living in NY. Is this legal? Is this a violation in any way of the restraining order? Am I able to file a restraining order against the family? My boyfriends mother is understandably concerned that there are people using her address. I'm just wondering if anything should be or could be done about it.