UPDATE on "German Übersoldiers?!"

A while back I postes on a document I found in a Bunker. I told you guys that I would try getting it certified, and researching it.
[It happened about a week ago, but I have been somewhat freaked out by this (and still am) and it has taken me a while of rationally over-thinking this before I post it, but I can tell you right away that !!I DID NOT MAKE THIS UP!!]
I took the document and drove to the Museum of German History here in Berlin. I had heard of a professor, who worked there, who could probably help me on this, due to years of service to the German National Archives (also located here in Berlin). As soon as I heard of this Man I went home, packed a backpack, and immediately drove down to the museum. Once arrived, I talked to the person who had told me about the doctor, who was a friend of mine, and worked at the museum a few years back. He lead me to the professor I was there for, but unfortunately the Meeting with him only lasted for 5 minutes, due to him leaving for a Appointment. In those 5 minutes he looked at the documents, and mumbled: "...mmmmmh.......mmmmmhhhmmmmmmmmh...........geheime reichsache?.......ummmmhmmmmmmmmmm....." He said that the first look told him that it was real, but he wanted to run experiments on it. He also asked for a new meeting a day later. I agreed.
On my way home, I decided to go to Mc Donalds.
Standing in line there, I noticed a man standing behind me, who was almost up my backpack getting closer and closer. I ignored him, and sat down. Once i was done eating, I was getting ready to leave, when suddenly a man sits down across from me. He said: "Hi, thats a pretty slick backpack you got there!, Do you think i could buy it off you fr maybe......400euros?"
I of course said no, thinking of the document in my bag, argued around for about 2 minutes with that guy until he got up and left.
After that i went home, left my backpack there and went to a friends house.
2 hours later i get home, and go to my backpack immediately, because I wanted to take another look at the document, and take some pictures of P-O-M. I bent down for my backpack and realize that it was open, although I remember just putting in down CLOSED, and leaving the house. I looked inside my backpack to find that my documents, and the Binder they were in, was gone!

The weirdest aspect about this story is that nthing was moved in my house, and the door was still locked and untouched. I do not have balkonies of other entrances.
I haven't seen the documents since then, and I do not know who this was, or how they did it.