Your meeting place is the owner's posession. If it works differently in Russia, enlighten me, but the owner has every right to boot you out.
I'm not saying that it was a smart business move, or the right thing to do. In fact, I fail to see why the owner would make a fool move like that. I am however, saying that, at least in the US they have the right.
Find a different hangout if it bothers you so much. It's skin off the business owner's back if you don't go there anymore.