After laptops and goods worth $12,000 were stolen from him, an Auckland man tracked the gear down to a suburban house and waited nearby for police to arrive.
But Aayush Tandon, 28, said despite multiple calls and a bucketload of information provided, police did nothing to help him.
"It's more frustrating than the actual robbery. We could see it moving in front of our eyes and nobody came to help."
Police say they are investigating, after the Herald made enquiries, and said when Tandon called, other jobs had to take priority.
Tandon's case highlights opportunities and challenges device-tracking technology provides crime victims.
"We called police at least 10-15 times but no help was provided, when needed the most. We waited outside their property for about 40 minutes but no help came."
Tandon said he could see people at the Massey property roaming around but the alleged thieves or recipients of stolen goods left before police arrived.
"We are taxpayers of the country and are feeling betrayed by the police system."
Police told the Herald inquiries were under way.
Police confirmed Tandon provided location tracking information about his devices, including two Apple MacBooks.
"Unfortunately this information alone is insufficient for police to be able to conduct a search of an address or vehicle," the spokeswoman added.
"Police were unable to immediately respond at the time due to other priority jobs being called in around the same time."
But police said positive lines of inquiry were being followed, including possible CCTV footage.
Anyone with information could contact Police on 105, quoting file number 210401/2108.
Private investigator Julia Hartley Moore said people were increasingly using location-tracking technology in different ways.