Honestly, it’s almost always legal to stop in a lane. Regardless of the fact that other drivers had bad behavior, that was the right thing to do. Some of the future of all this is that we will need to install curbs in places we don’t have them now to prevent bad human behavior.
This is absolutely false in California, please don't spread dangerous misinformation.
See CVC 22400(a):
No person shall drive upon a highway at such a slow speed as to impede or block the normal and reasonable movement of traffic unless the reduced speed is necessary for safe operation, becauseof a grade, or in compliance with law.
No person shall bring a vehicle to a complete stop upon a highway so as to impede or block the normal and reasonable movement of traffic unless the stop is necessary for safe operation or in compliance with law.
The above was referencing stopping on a city street ("Powell between Bush and Sutter"). You're talking about stopping on a highway. These things are not particularly comparable.
In the California Vehicle Code section 360, a "highway" is defined for the purposes of the vehicle code as "a way or place of whatever nature, publicly maintained and open to the use of the public for purposes of vehicular travel. Highway includes street." [0]
