A reminder that "legal" isn't always "safe"
In the case of the blue sedan, a left turn is legal here but almost never advisable. This street is notorious for people attempting to turn left through several lanes of traffic. I personally just turn right and make the next legal u-turn.
In MY case, I was going the speed limit but I was not going slow enough to be predictable to the blue sedan. All of the cars going slower in the right lane should have been my signal to slow down for unseen hazards ahead.
Hopefully a good learning moment for the both of us.