I know the contest is based on the list of official dates but the press release announcing the opening of the road was made (under Park News) before they listed the Nov 18th closing.December 07, 2011
Tioga Road in Yosemite National Park to Reopen (2011)
After a temporary closure, the Tioga Road in Yosemite National Park will reopen to the public at 3:00 p.m. today, Wednesday, December 07, 2011. The Tioga Road, the popular east-west crossing of the Sierra Nevada in the northern portion of the park, has been temporarily closed due a high wind event in the Yosemite area.