Lost Bag in Munich

Hi! I'm a 19 year old college student, who stupidly left valuables (by that I mean passport, license, credit/debit cards, etc) in a train station in Munich. I did the usual things, and made it "home" to Rome, where my school is. Here's the problem. On Sunday at about noon I went to the City Police station just outside the Hauptbahnhof (Central Train station). They told me that my bag had been found, and read off a list of all the things that were in it, so I could ID it as mine. It was turned in at a city lost and found, which was unfortunately closed all weekend. I had to leave the city or miss my flight, but I was assured that I could get the bag shipped to me. My parents, a German-speaking family friend who lives in Munich, and I have all called every lost and found in Munich, but none of them have anything like what I describe or associated with my name in any way. I'm trying to call the police station that told me to follow this course of action, but I can't find a phone number.
Can anyone advise me a) of how to get in touch with the Police without calling 110, which I believe is emergency, or b) of another course of action that might allow me to get my possessions back.
Thanks in advance!