It is unlawful for any person to consume or possess in an unsealed container, "beer", "wine" or "liquor", as those terms are defined in section 3.01 of this code, on any privately owned parking lot which is clearly signposted prohibiting such possession and consumption; provided, that this section shall not apply to the possession of an unsealed container in a motor vehicle on privately owned parking lots when the container is kept in the trunk of such vehicle if it is equipped with a trunk, or kept in some other area of the vehicle not normally occupied by the driver or passengers, if the motor vehicle is not equipped with a trunk. For the purpose of this section, a utility or glove compartment shall be deemed to be within the area occupied by the driver or passengers. (Ord. 131, 2nd Series, eff. 10-29-1984)