A 34-year-old Porter Avenue man was arrested early Valentine’s Day for allegedly stalking motorists around the Erie County Medical Center on Grider Street and pretending he was a member of the hospital’s police department.

Ernest Patterson was arrested near the hospital about 12:30 a.m. Thursday by Buffalo Police Officer Kevin Keane.

He is charged with first-degree criminal impersonation of a police officer, fourth-degree stalking, criminal mischief and harassment.

He is accused of having fake ECMC police badges.