Can police help you get your things back?

I just moved out of a really shitty live-in nanny situation last night and after I'd grabbed all my things, I realized stuff I'd just bought was missing. The woman isn't answering my texts or calls. Would I be able to call the police and have them escort me there to get my stuff? She also owes me $150. Would the police be able to help me with that or would I need to go through small claims court? Thanks! (: