The 37-year-old victim summoned police to the Oak Street business at 6:35 a.m., the chief said.
Sgt. Thomas Eilinger and Officer Michael Getto quickly found the man, who told them that his assailant was still inside, he said.
They arrested Jose Fuentes, 37, of West New York, and charged him with aggravated assault and weapons possession.
Fuentes was being taken to the Bergen County Jail on $35,000 bail.
The victim was treated at the scene by Norwood EMS and refused further medical attention, Krapels said.
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