There were a few “protests” and they walked onto the 8 freeway and blocked traffic for about half an hour or so I’ve heard. There wasn’t any true rioting, unless you cal graffiti a riot. I was downtown when there were two days of protests which included a large-ish crowd marching around and chanting.
I’ll admit that I don’t watch the news, but I am a local and have been working every day and talk with a lot of other locals who all said they were happy everything remained mostly peaceful. A few shop windows got broken and some signs/walls spray painted which I think was the most destruction caused here in San Diego.
edit- I talked to a friend and apparently there were three buildings burnt down and some looting. It’s a damn shame because La Mesa is a decent blue collar town mixed with folks that just like being outside.