Check out this news release. They are saying Petco condones the MSN law in Los Angeles, stating,
“The problem in our city is not the animals but the human owners, and this ordinance will allow the Department of Animal services to target resources towards the worst offenders whose irresponsibility threaten public safety and fills our shelters with unwanted dogs and cats.”
http://www.cahealthypets.com/ca-healthy-pets-ab-1634-home.php