I think - correct me if I'm wrong - but an officer or law enforcement would serve him? I would double check as you don't want your friend mixed up in this and also I don't think it would have nearly the same impact (if it's even possible for someone outside of the law to serve)...
Also I would see if you could stay somewhere until things calm down. I don't blame you for being afraid - I think every woman who has to go to that length is already extremely afraid
Giant massive group hug!!!