That has nothing to do with recipricosity.
If it's such a big deal, why didn't the girls go to jail?
/johnny
The end result of being questioned by the police is not necessarily “going to jail”.
I’ve been questioned by the police many times over the years in many different localities, and never once was the result - “going to jail” ... :-) ...
In regards to the license, you can see that the police clearly knew that a permit was required in Oklahoma. If they were dealing with just the Missouri law, the police would have never asked for a permit, you see.