The Russians in the know are leaving the country en masse. As there are no air flights, they are having to do it by train, coach and car. There are four VR trains a day running from St Petersburg to Helsinki and they are all fully booked. Normal ticket price is €160 for Finnish/EU or Russian passport holders only. However, you can buy a ticket under the counter for €7,000. The train stops at Helsinki Vantaa airport on the way, from whence Russians are getting their connections to Germany and elsewhere.
When military law is called, no male of conscript age will be allowed to leave, is the word on the ground.