OP goes to his folks house picks up his dad's handgun takes the test, passes, takes handgun back to the folks place. CHP is issued, takes said weapon to Omahaha.
What law has he broke?
None. But that wasn't the situation first mentioned. (It isn't his dad's handgun. It is his.) Nor was it the example I gave.
Omaha has no jurisdiction outside it's city limits notwithstanding the statutes language.
BUT----it defines a specific situation for a person currently IN Omaha. Technically, he is within that jurisdiction. Remember, the ordinance doesn't say anything about the gun, it simply says what the _person_ is required to do.
So, if you don't do it, you are in violation of that ordinance.
The person is within the jurisdiction, and has violated that ordinance, in the situation I outlined above.
....it is still stupid, though. It requires "the city of Omaha" to know your property, whether held in Omaha or not, and it requires you (as the owner of said property) to pay Omaha so that you can have it, even though you don't have said property IN Omaha.
Since you live there.
I'm pretty sure if any DA was dumb enough to take that to court, it would fail. Nonetheless, it is an interesting point.