Yeah, but the problem is......the first night they were on the run, an Amber Alert hadn't even been issued. It's known they were heading south out of Tennessee into Alabama at 3 p.m. that afternoon. They could have hit the junction to the major Interstates in Birmingham before dark that evening. Then........they have basically 10 hours of total darkness in which to cruise along the Interstate in any direction they choose.
10 hours later.........as the sun rises........an Amber Alert still had not been issued. By that point, they could have easily traveled 500 miles away and been well outside the alert zone.
I just can't see TC staying close to home...........far too risky.
I think he underestimated the level of attention this would get initially. Taking 5-6 hours to get an hour down I-65 indicates that he was not on the run that first day.
My theory is that the first night they headed south to I-20 then west to Jackson, MS where they stopped to refuel (based on the Rouge's fuel range). Then south to I-10 or on west to regroup. Within a couple of days they were in Texas. He has to consider the consequences of crossing the border. If she is still all in on the marriage, they keep going south for a while. If she is not, he has to work to convince her or leave her behind.
The above is my opinion only.