Those reports turned out to be false.
"Posts on social media contended Oprah Winfrey refused to open her private road, or was slow to do so during an evacuation. But the roadway does not belong to Winfrey, and efforts to open the road to the public started soon after the tsunami warning was issued."
Oprah Winfrey's representative and the president of Haleakala Ranch confirmed that a private road on Maui is owned by the ranch and not Winfrey.
apnews.com
"This is false. Despite being commonly known as “Oprah’s road,” the portion of Kealakapu Road is privately owned — but not by Winfrey. It belongs to Haleakala Ranch, which also owns the land surrounding the road, its president Scott Meidell told The Associated Press.
Winfrey has an easement agreement with the ranch, which allows her to use and make certain improvements to the road, her representative told the AP in a statement. Winfrey has paved the road as part of the agreement, Meidell said."