If something happens at 2am on a Saturday:
Call 911 for emergencies. Call (734) 994-2911 for the Police non-emergency line.
Water
The water dept. has an after-hours emergency number if you think any water back-ups are systemic, water is across a street, have a water main break, or if waste water/sewage is coming into your house or neighborhood: 734-994-2840.
Noise
Call (734) 994-2911 for the Police non-emergency line.
Animals
If dangerous: call (734) 994-2911 for the Police non-emergency line.
Found or injured animals: The Humane Society of Huron Valley is "on call" to rescue sick or injured, animals, 24 hours a day, 365 days a year. Call (734) 662-5585, leave a detailed message and your phone number, and a volunteer will call you back in +/- 30 minutes. More information.