Monte Carlo delicatessen in Burbank (on Magnolia, within earshot of the siren song of Porto's Bakery) has it -- I have bought it on many occasions, when I've wanted it with shaved pecorino, good olive oil and lemon juice.
Mario's Italian Deli, Glendale Eagle Rock Italian Bakery/Deli, Eagle Rock Roma's Italian Deli, Pasadena Claro's Italian Deli, (a few different locations)