A crash snarled traffic on the Maine Turnpike in Falmouth Friday afternoon when one car ended up on its roof in the right-hand travel lane. No one was injured, according to police. The one-car rollover crash was reported at 2:14 p.m., and the car came to rest upside down in the southbound travel lane. Traffic was able to pass the scene in the left passing lane, and a wrecker later cleared the highway.