My friend has a felony warrant in Oklahoma, for failure to pay fines and fees. She doesnt live in Oklahoma and never has. What are the odds they will pick her up on this??

What are the odds that she gets stopped for a traffic violation? They aren't going to send the US Marshal to find her, but if she screws up, they will have a reason to detain her and notify the county in Oklahoma that issued the warrant. It's not a felony to not pay a fine, there is surely more to this story...