The story leaked that morning. The SF Chronicle reported on it at ~11:30AM, explaining "County authorities were expected to announce the move at 1 p.m. and gave a draft of the order to media outlets to prepare. The Chronicle is reporting the story after a television station published the news early."
https://twitter.com/sfchronicle/status/1239620219376504832I knew Breed jumped the gun and thought it a little showy, but I assumed she did it partly to get ahead of the rumor mill. Maybe her office coaxed the TV station (KTVU?) to leak it early?
Anyhow, this is all largely irrelevant. I purposefully didn't single out Breed in my previous comment. What's relevant is that these counties had clearly been working on this order long before the announcement, which means that for her part Breed would have known about it and approved of it days prior. Which is in stark contrast to mayors like De Blasio and most other politicians outside the West Coast and especially outside the Bay Area--Newsom was almost too late in ordering a state-wide shutdown, judging by how bad Los Angeles got. They were consistently days late, during a time when days and even hours mattered.
I'm not very concerned by Breed trying to capitalize on her decisions. What matters is that she has made decisions that could have easily resulted in intense blowback (and still might) while others sat around on their thumbs too afraid of the political costs. There's plenty to still criticize Breed for, but relatively speaking she deserves some praise. And that's basically how the Mission Local article lands, too.
EDIT: See also Breed's first tweet at 11:57AM, which I think comes before her press conference, though Youtube isn't showing the time of the video, just the date. https://twitter.com/LondonBreed/status/1239626809865416704 Speaking of which, it's highly annoying how the SF Chronicle and the Mercury News update their articles in ways that obscure the timeline of what was said and when.