Construction on 54/15-501

One of these may be the project (but I do not see it) that held up traffic today at 2:30 for nearly 45 minutes north or eastbound on 54/15-501 in Chapel Hill. They seem to be adding additional space in the left turn lane for Laurel Hill Road. I presume that is to accomodate more students at the Roman Catholic School there. It was a huge inconvenience and I have seldom seen so many drivers pass others waiting in line after a clear warning to merge left. I thought people had better manners around here.