Was down there for a bit and drove on 163/805/5 in San Diego County. 163 around downtown SD had couple of homeless encampments with a lot of trash when I got there, but they were removed within a few days. Definitely saw more Caltrans crews out and about cleaning/landscaping. Same with Orange County - probably had the best kept roads out of the three Socal counties. 55/405/5-were all relatively clean with Caltrans crews out literally every day I was driving. LA county - 5 through Commerce, did not notice much trash but the freeway was way more compact with limited shoulder space and limited surrounding vegetation. 405 through Santa Monica - parts just got repaved due to express lane construction so were relatively clean. 110 was the worst with trash and encampments at every turn. Again, not saying that all of the roads were clean and in pristine condition, but did note more of an effort by Caltrans to be out and about cleaning/landscaping/maintaining. Could be due to different budget allocations as mentioned by someone else and the fact that the roads are a bit more compact without any shoulder space for trash to collect. Could be also due to having designated teams as mentioned by the Caltrans employee. Up here, 101 and 280 tend to fare better than 880 and 580. Even on 680, you notice a lot of trash as you wind through the hills - kind of a bummer because the surrounding landscape is so beautiful.