I live in a small city in one of the United States whose name is not California. Our "No Kings" rally was attended by about 1 in 50 of the city's residents. The rally was completely peaceful, as has been true for most or all of today's rallies.
There were four No Kings rallies within an hour's drive, all scheduled at different times, which allowed an organized vehicular counter-protest to show up at all four. I assume most of the relatively small number of folks who drove past multiple times to offer a view of their digitus medius were aligned with that counter-protest.
Police SUVs drove past at regular intervals, and I saw at least one vehicle that identified itself as belonging to the sheriff's department. The nearest thing to a confrontation that I saw occurred when a flat-bed truck pulled in next to the sidewalk where the flag- and sign-holders were standing. It so happened that I was the only male standing along that stretch of sidewalk, which may be why the middle-aged male driver edged his truck forward until he could stare directly at me across his cab and open window. He seemed to want nothing more than a staring contest, so I just stared back. After a minute or so, he began to move his truck forward, apparently seeking greater joy. He didn't notice a police SUV arrive in the opposite lane. It turned on its flashing light and signalled for a U-turn. As the police officer waited for traffic to move out of the way so he could complete his U-turn, a rather agitated middle-aged woman stepped from the sidewalk out into the street in front of me, obviously intent on offering the truck driver her opinion of his behavior. A couple of us pulled her back onto the sidewalk, pointing out that she was obstructing the path of a police vehicle. The police officer conducted the apparent equivalent of a traffic stop, talking to the truck driver for a few minutes before going back to his vehicle, writing for a bit, and then returning for a short discussion with the truck driver. Back in his SUV, the officer waited for the truck driver to pull back into traffic and then followed him down the street.
That's today's news from Lake Wobegon Trump country.