Can I file some kind an emergency procedure which will prevent her from leaving the state?

I served my wife with joint custody and visitation rights for my son. She kept me from seeing my son for the last 7 weeks. She cheated on me twice. I have pictures and voice calls recorded. What can I do to stop her from taking my son out of state? She called the cop’s special victim’s unit and lied that I smacked my son. She tells my son what to tell the police and court and he listens because his scared. Please help! She is about to leave any time now before July 4th. I need to do something really fast.