Easy decision for me at this point.

I need to get home to my family ASAP. And a mercedes is not even close to a reality for me. Even if it was, I would like to think getting to my family is more important than the mercedes.

In any event, swap as much info as possible (names, addresses, phone numbers, etc), maybe consider swapping credit cards as a sign of good faith that after things settle down you'll contact each other again and swap vehicles and cards back. Maybe not such a good idea though if they give you their maxed out $200 limit card in exchange for your $5,000 limit card with no current balance. In this situation, I imagine I would do whatever it takes to get back on the road, though.

I am not really a material guy as you might have noticed. I like to think that after the fact, I could accept losing some material goods as long as me and mine are safe.