I tried this yesterday on Barashka after I got blindsided by a shell that knocked out my tracks while I was at a funny angle. The result was that I couldn't lower my turret to shoot back so I was essentially dead. So what I did was jump out of the tank and then sneak back into it. This made it look like the tank has been abandonned. I also made sure not to move the turret. The enemy shot one or two more shells and then got distracted by something else and figured the tank was empty. I managed to get one more kill before dying.