It was in Fast and Furious 6 too. To combat hacking they went old school and bought mustangs and chargers from the 60s.
From what I've read of the Person of Interest set-up, it's downright creepy and gives me a feeling that it's part of a campaign to desensitize you for the Surveillance/Police State.
Seriously creepy.You are being watched. The government has a secret system: a machine that spies on you every hour of every day. I know, because I built it. I designed the machine to detect acts of terror, but it sees everything. Violent crimes involving ordinary people; people like you. Crimes the government considered 'irrelevant'. They wouldn't act, so I decided I would. But I needed a partner, someone with the skills to intervene. Hunted by the authorities, we work in secret. You'll never find us, but victim or perpetrator, if your number's up... we'll find you.
Season one opening voice-over by Mr. Finch