It was a consulate, you genius, and he spent several days there. He must be a moron if he expected that would stay secret.

You do realize especially with his situation, he had to cover all legal aspects. Anyone would visit the consulate before traveling to Russia, and he would, too, even if he didn't plan to leave the international zone.

Staying Russia wasn't his plan, but it was definitely an option as he must've known that he might get trapped in any country he crossed.