[MBCook]

My Honda would interpret it as the lane getting wider and try to stay in the middle of that new wide ‘lane’.

I’ve noticed that behavior when there is a turn off on the highway that isn’t marked off. The car will start to drift to the right (to stay in the “middle”) if you don’t kee i’ve noticed that behavior win there is a turn off on Highway that isn’t marked off. The car will start to drift to the right (to stay in the “middle“) if you don’t intervene. I imagine if I kept going it would then decided it was outside the lane (after turnoff was passed) and yell at me.