I should mention one location down near Destin, Florida where I made a left turn using a sidewalk on the left side, riding contraflow for a short distance.

The reason for doing so is that based on prior experience, the nearly 1/4 mile long left turn lane usually ends up with a massive line of cars trying to turn left, in addition to the massive amount of traffic in the 2 straight-through travel lanes. This is heading west on Hwy 98 in Miramar Beach towards Destin, with the left turn onto Old Scenic 98 running along the beach, if you want to look it up.

I had previously used the bike lane to make a box left turn at that location. The problem is that the light cycles are incredibly long at that particular light. So the next time I took advantage of a break in traffic platoons to move to the center turn lane (before it went away at the left turn lane with concrete median), and turned left onto the sidewalk on the opposite side of the road. Then I rode the sidewalk very carefully to get to the intersection, and used the crosswalk at the appropriate time to get to the travel lane on Scenic 98.

But that is a very specialized, unique situation. I have never encountered such a long, high-traffic left turn lane anywhere else in all my time cycling.