City of Plymouth encourages residents to call 911 on people who leave behind dog droppings (FOX 9) PLYMOUTH, Minn. (FOX 9) - The City of Plymouth, Minnesota is cracking down on pet owners who don't follow ordinances, like leashing their dogs and cleaning up after them, even encouraging people to call 911 on violators. In an email sent Wednesday, residents were encouraged to report violators to 911. The notice also said it was looking for "dog etiquette ambassadors"--a program that would be volunteer-based. City of Plymouth encourages residents to call 911 on people who leave behind dog droppings The city of Plymouth is taking its dog poop problem seriously.