While Sunset Park is not named, our friendly neighbors to the south and south-east are. The Brooklyn Eagle (and thanks to Brownstoner for doing the linking) reports that there have been at least four home burglaries involving thieves posing as Con-Ed or Water Department employees.
Always ask to see ID prior to letting someone in to check meters. It's also a good idea to take a look for an official vehicle. When in doubt, call the company to check on the employee. If they say they can't wait, take a name and ask them to come back another time. That's what would have happened had you not been home, right?
Read the article from this link.