Update!
Mr. Lee, the "bad guy", became flustered and told another company to take care of my bike. Those guys called my friend a few days ago and told him: "Hey, won't you pick up your bike which is here since a month already?" My friend told me and of course I went to the Police first. They were happy to have something against Mr. Lee now, picked up the photos (before that nobody ever came or even called me...) and now I call the Police every now and then and wait for the ok to go there and finish this story.
But it seems they want to get Mr. Lee, so just going to the storage place and picking up my bike is not so easy. So far I do not see the need in making the police angry.
But next week I will just announce to go there and pick up the bike, no matter what they say.
I keep you updated.

P.S. The plates of the van indeed were fakes as I presumed.