法令裏講如果留在車裏，外邊氣溫很高或很低，對動物健康造成傷害的，要罰款。
這是法令原文
http://www.leginfo.ca.gov/pub/05-06/bill/sen/*****_1801-1850/*****_1806_bill_20060922_chaptered.html 主要是這兩條 SEC. 2. Section 597.7 is added to the Penal Code, to read 597.7. (a) No person shall leave or confine an animal in any unattended motor vehicle under conditions that endanger the health or well-being of an animal due to heat, cold, lack of adequate ventilation, or lack of food or water, or other circumstances that could reasonably be expected to cause suffering, disability, or death to the animal. (b) Unless the animal suffers great bodily injury, a first conviction for violation of this section is punishable by a fine not exceeding one hundred dollars ($100) per animal. If the animal suffers great bodily injury, a violation of this section is punishable by a fine not exceeding five hundred dollars ($500), imprisonment in a county jail not exceeding six months, or by both a fine and imprisonment. Any subsequent violation of this section, regardless of injury to the animal, is also punishable by a fine not exceeding five hundred dollars ($500), imprisonment in a county jail not exceeding six months, or by both a fine and imprisonment.