Petty theft in Los Angeles or elsewhere is an interesting animal, as far as crimes are concerned.
Understand that if you steal a valuable item worth less than $400, you can still face plenty of reprobation per California law. Indeed, if you are convicted of two counts of petty theft in Southern California, the second conviction can actually elevate the offense to a felony, and you could end up spending a whole year behind bars or worse!
So shoplifting and other types of petty theft can be punished quite egregiously.