Total Wine & more in Torrance carries it. But call before you go. If they got it in then its a one bottle per person. And you have to ask for it or its in the back cooler. Good luck.
You can also try Whole Foods in El Segundo or any local Bristol Farms. I would recommend calling these places beforehand just to make sure they have any.
if long beach isnt too far for you then i have three places i have bought pliny at 2 in long beach are Cal Heights Market http://beeradvocate.com/beer/profile/20648 Sterns Liquor http://beeradvocate.com/beer/profile/23358 also have bought it in cypress Icon http://beeradvocate.com/beer/profile/29023 which is owned by the same people as cal heights. i have had success at all of those, they often dont have them on display so ask if you dont see it or better yet, call first