You need to ask your divorce attorney this question because I can see this turning into a huge mess. If you do not have an attorney, then you should contact your judge's clerk and ask what the best course of action is - they may well tell you that you need an attorney. The State Bar of California can give you a referral: http://www.calbar.ca.gov/state/calbar/calbar_home.jsp
You may also want to contact animal control and see if they can assist in getting the animals rounded up.
A weekly guide with tips and legal advice for each stage of the process.