Does section 654 of the California Penal Code bar multiple punishment for a single act that violates more than one criminal statute?

Penal Code section 654, subdivision (a) provides, in pertinent part, "[a]n act or omission that is punishable in different ways by different provisions of law shall be punished under the provision that provides for the longest potential term of imprisonment, but in no case shall the act or omission be punished under more than one provision." Section 654 is intended "to insure that a defendant's punishment [is] commensurate with his [or her] culpability." (People v. Perez (1979) 23 Cal.3d 545, 552.) The statute bars multiple punishment for both a single act that violates more than one criminal statute and multiple acts, where those acts comprise an indivisible course of conduct incident to a single criminal objective and intent. (People v. Latimer (1993) 5 Cal.4th 1203, 1208.) Conversely, where a defendant commits multiple criminal offenses during a single course of conduct, he or she may be separately punished for each offense that he or she committed pursuant to a separate intent and objective. (People v. Beamon (1973) 8 Cal.3d 625, 637-639.)