An automated late-night telephone alert system in Ann Arbor has prompted a wave of complaints to police.
More than 20-thousand Ann Arbor households received late-night calls Sunday about a 94-year-old man with Alzheimer's disease who had wandered off.
People got the calls through the CodeRed emergency notification system, which Ann Arbor adopted in September.
The alert went out close to midnight and was triggered by an employee who didn't know how to limit the area to which a message is sent. Police halted the alert within 30 minutes, after the elderly man was found safe.
Police received more than 100 complaints about the incident.