There was a guy (in CHicago I think), that didnt like people who drove around distracted on their phones. So, he had a cell phone jammer in his car and when he drove around, it disrupted cell phones with a certain radius. I believe he used it on the expressways. He got caught becuase it also interfered with police communications.
EDIT: This isnt the story I was thinking of, but it is similar.
https://lawandcrime.com/crazy/man-charged-for-using-cellphone-jammer-to-get-peace-and-quiet-during-train-commute/
A man in search of some peace and quiet on his commute home is now facing one felony count of unlawful interference with a public utility. Dennis Nicholl, a 63-year-old Chicago man, was arrested after undercover police officers boarded a Red Line train and spotted him with a cellphone jammer amidst reports of disrupted communication by the Chicago Transit Authority and its passengers.