guess going over 5 miles over the speed limit wasn't good enough, plus couldn't merge over due to car and that car oh well....
It’s less about if you were going over the limit and more about using the left lane only for passing. I understand in that moment you couldn’t move into the right hand lane because the brake check car was in your blind spot, but I assume you could have moved back into the right lane earlier when you realized you weren’t going to pass the car ahead (assuming he didn’t speed up when he realized you were passing - I hate those types).
In my neck of CA you have to be doing at least 15 over the speed limit to really “camp” in the left lane. And even then, folks will be going faster than you and you will still need to move over.
In California, the law that allows officers to pull drivers over for dawdling in the left lane is in Vehicle Code, Section 21654, which states, “on California roadways with multiple lanes traveling in the same direction a vehicle shall be driven in the lane closest to the right side of the roadway. This lane is typically referred to as the slow lane or #2 lane. Vehicles driving in the left lane (#1 lane or commonly referred to as the fast lane) should be either be overtaking, passing another vehicle proceeding in the same direction, or be preparing to complete a left turn.”
Read more here:
https://www.sacbee.com/news/california/article217276300.html#storylink=cpy
None of that justifies a brake check by the fellow who was impatient, of course, but at least it didn’t look too bad in the video. If you were using TACC the car should have handled it hopefully.