I've just been thinking: IF they don't find her in this area ... what about the fact that she had her dad's 2 gas cans and Amy bought her another. If she had all 3 full, and a tankful in her car, she would get about 250 miles one way, 500 round trip.
With that amount, I'm thinking she could have gotten about an hour outside of Florida.
How many hours was it, that her cell phone was quiet?
She could have taken her that amount of distance away, and came back .... if so, they won't find her where they're looking.
Thoughts?