The Nashville senior and his son who were rescued in Yellowstone National Park likely won't face charges.
Sheriff's officers in Wyoming say 60-year-old John Ray Elmore Jr. of Los Angeles and his father, 85-year-old John M. Elmore Sr., of Nashville drove around at least two road-closed signs due to faulty navigation device information.
The road has been closed and unplowed since last fall. Snow still covers much of the route but the men said their navigation device showed it was open.
Their Nissan SUV got stuck Tuesday about a mile from the last road-closed sign. The men called for help on a cellphone.
Rescuers got them out with help from a resident with a pickup truck.