At a New York book signing Wednesday (for his autobiography “I Ain’t Got Time to Bleed”), Minnesota Gov. Jesse Ventura snubbed one of Howard Stern’s long-haired, T-shirt-clad reporters by refusing to appear on the shock jock’s radio program. “Why don’t you come on our show, Governor?” the reporter asked. The one-time professional wrestler chastised Stern for once keeping him on hold for 20 minutes, then telling him that the show had run out of air time. “What goes around, comes around,” Ventura said Wednesday.