On one occasion, when there was a collision at the 401 eastbound split just before 427, traffic was blocked for miles and well past 410. I got on 401 at 410 and got stuck in traffic. When my air/oil cooled bike started to act up as if it was overheating, I tried to split in order to make my way to the shoulder. I got blocked by multiple cars. I had a couple of pickup drivers damned near take me off the bike with their mirrors. I even had a couple of doors opened on me. Ultimately I ended up splitting all the way from the 410 ramp to past the collision, simply because drivers would not let me get across traffic to the breakdown lane.
This is NOT the place for lane splitting.
...I rarely read sad posts from you but this one really did make me sad face.