RIVERHEAD - Hundreds of Long Islanders eager to get ahead on their holiday shopping turned out to box stores and outlets for Turkey Day deals last night.There were long lines just to get into the parking lots at the Tanger Outlets in Riverhead, which opened at 10 p.m. Police reportedly had to shut down roads leading to the lots and send shoppers to the nearby Riverhead Raceway to park.At the Best Buy store in Westbury, scores of after-dinner shoppers stretched around the building. Many camped out, even playing soccer while waiting for the store to open.Toys 'R' Us stores got a jump on other retailers by kicking off Black Friday at 9 p.m. last night.LI residents hit the stores for Black Friday dealsBlack Friday shopping tip: Resist impulse buysSome LI stores jump-start Black Friday with Turkey Day deals