By Matt WynnUSA TODAYPeople at Missouri's Lake of the Ozarks drew a scolding from across the internet Memorial Day weekend after images of shoulder-to-shoulder partiers in a swimming pool went viral.The lakefront wasn’t the only place to draw a huge influx of holiday visitors to its hotels, restaurants and stores.A USA TODAY analysis of cellphone data found about 400 ZIP codes where foot traffic at businesses more than doubled from the previous weekend.Read more on NewsOK.com