google 了一下。From ctv.ca:
"In the United States, numerous states have laws that make it a traffic violation to have children unattended in vehicles. Canada doesn't have such a law," said Tracey Warren of Child Safe Canada.
说实话，你最好还是找个专业人士问问吧。小孩让给带走就麻烦了。
另外，温度和你的车是否打着火也很重要。关键就是不要让他们说你endanger your child.