This isn't a movie
At the time of the camping trip he was not wanted for a crime, he was free to move about, travel, do whatever he wanted. He could go to Mexico, he could have flown to Canada. Why this elaborate, unnecessary rouse? People talking about parents influx of cash from real estate purchases. OK, just buy him a ticket to a non extradition country and give him cash, tick off the Covid checklist requirements. Fly out freely. These elaborate stories of camping trips and dropping him off in locations so he can hike to the border? Just drive him to the border. Also, he left his mustang at the reserve as a distraction, just drive to the border, dump it there. I think we are overestimating this family and forgetting his status at the time he went missing did not hinder his movement.
And if the parents went and did this unnecessary and elaborate plan. Im not confident a seemingly normal family would be able to pull that off without leaving evidence of their actions. The FBI are confident in their assertions he went to the reserve. It is very hard to orchestrate an escape without leaving breadcrumbs like google searches, withdrawals of cash, purchasing of supplies, evading traffic cams, evading store cams, purchasing everything with cash. It just seems like we are giving these parents are bit more credit than I think they deserve. They are not masterminds. This is evident in him driving home to Florida and not straight to Mexico before any one was even suspicious. And them hiring a real estate attorney.