I think it was somebodys pet that got out, i have been living here in San Diego my whole life and i have NEVER seen a wild lizard... Or any lizard for that matter. And no it isnt a snake, it had legs, you just cant see them in the picture.
I have others if you want to see them.
But judgeing by the snails and spiders, i would say the lizard was having the time of his life ^^.
I had never seen a lizard crawling around like that until I went to Myrtle Beach. I was laying by the pool soaking up some sun and I kept hearing this noise coming from the nearby bushes and trees. I saw that lizard crawling around and it scared the life out of me! I couldn't relax near the pool at all after that--I was afraid it was gonna crawl on me.