I drove 205/580->680->880->237 daily for years, one of the first express corridors. People constantly crossing over the double-white line, intentionally exiting the lane at each transponder to skip tolls, driving on the shoulder, driving past a huge line of cars so they can bully their way in at the last moment. CHP seems to let most of that slide - they're busy with the massive accidents that constantly result.

I highly doubt they're going to care about 1 vs 2 vs 3, and I feel for them if they're expected to.

On a normal day it can be tough to tell why people are getting pulled over though. You'd have to be able to observe the conditions and watch them get pulled over which is a pretty short window given the attention & timing factors.

Conversely, driving the same through the peninsula I never saw any. It seems to be up to the discretion of the county/local cops to enforce, which isn't a conviction of the rule itself but really the enforcing authority.