If he’s a foreign national who never wants to visit the US again for any reason, and can expect his country not to extradite him for whatever the charge is, then it is a reasonable strategy.
Countries usually don't extradite their own citizens. That is one. Second, it seems to have been a traffic related issue. Do people get extradited for traffic related offences?
Lastly, I didn't say he didn't have to get good representation. I totally would if I was in his shoes. Don't skimp on a good lawyer.
Yes I do not expect to be extradited, and I am not in U.S. anymore (since several years). However, being "wanted" in the U.S. can have negative impact on job applications to American (and some non-American) companies even in other countries, and of course - travelling to the U.S. for vacation trips is difficult.
I understand now. Where you wrote “I am not staying in the U.S.” I took that to mean that you were leaving the US, but you meant that you are currently not living in the US. I think your plan is exactly right, find good representation before traveling to the US. It would be best to deal with this problem in a planned out way rather than simply arriving in the country and being arrested somewhere.