Kids Joint Legal - Sole Physical

My husband moved out over 1-1/2 years ago - we underwent a custody eval. The evaluator gave me sole legal and sole physical custody. My narcissitic husband who even had a gps put on my car was heading us down a path of trial. Meaning over $150,000 and I am already $70,000 into this. I just want out of this marriage. He makes it impossible. I feel I got bullied into agreeing to joint legal with me having sole physical. Due to his mental illness he cannot accept that he is no longer in physical custody. He shows up at my son's school and daycare trying to be super dad. However when we were together he spent his days either fishing or gambling. Is there anything out there that would tell him what his limitations are specifically. When I try and discuss his wrong doings, he just replies I disagree. He is disrupting our childrens normal lives and because he is narcissistic he cannot realise this. Everything is about him. Please help - how do I control this monster