The unpaved stretch of Pennick Road is approximately 4.8-4.9 miles, it looks like. The northern end of the unpaved part of Pennick Road terminates into Altamaha Park Road. That road terminates at Altamaha Regional Park, which has a boat ramp, camping, etc.on the Altamaha River. The park is 18 miles away from the Harley-Davidson dealership, about a half hour on main roads.
That would be too far for a normal lunch break, since she doesn't return late from lunch, according to her manager. Not likely she'd have gone that far during lunch on her own.
I'm just researching based on the limited info in the articles, MO and please don't read too much into it. Just wanted to gather more info on Pennick Road.
Don't know if this helps since I'm not from the area and not familiar with the surroundings, but there is video footage of her leaving the parking lot and then turning right.