I agree, I just act like a car, and get in whatever lane is right for the direction I am traveling, behind the cars in that lane.

There are several roads near me where there is an on-off ramp to an interstate (I'm not on the interstate but on a road where there is an entrance ramp TO the interstate). Again, if I am able, I take the lane with the traffic going straight if it's not a high speed road. If not, I do what the cyclist in the video did and that's to watch for traffic behind... ride very defensively in this situation.