okay, this is from a collector, not much of a shooter, I also know a bit about police lugers.
I hate to say it, but you paid too much, technically its an import marked gun, and they bring way less than a non-import marked gun. That said, I have wondered if Sturgess collection being bought by many folks will change how many collectors think about import marked guns, which could and does happen.
That said, its a very nice police luger and if you paid a bit too much but not incredible amount the important thing is that you like it. I would say most of us have paid too much for something, especially at an auction
The mag safety was put on lugers in the mid to late 30's and was very quickly decided that it should not stay. See the FAQ for a full write up.
Ed