Santa Rosa police officers and a Sonoma County Sheriff’s helicopter crew rescued an at-risk 80-year-old man Thursday evening after he went missing near Annadel State Park. Officers were first called to a home on the 300 block of Los Alamos Road around 5:53 p.m. after a concerned neighbor reported the man had not been seen or heard from in roughly two days. Investigators found his house unlocked with his car and cell phone still inside, raising u…