Well, I posted too soon. A lady from Kearney post office did call me back like she said she would, and told me that I could mail it after all, but they would need it open to inspect before accepting the package (which is an option in the regs, but not completely understandable -- since if I was shipping something illegal, I wouldn't be telling them I'm shipping a firearm
).
I was just a bit peeved initially at the apparently poor training the clerks received. That, and the all-too-common "oooh, it's a scary gun!" type of reaction never ceases to amaze me.
Now, do I risk shipping it through Kearney's post office? Now that I may have ruffled some feathers or hurt some feelings, I may find myself needing to submit an insurance claim and reporting a lost firearm if it should happen to disappear en route.
People don't like being told they don't know their own job, even when it is true, but would they stoop so low? (No, I never actually told them that they don't know what they're doing. I just said that there must be some misunderstanding, and everyone remained civil and even friendly.)
The lady at UPS here in Kearney is really nice and actually knows her stuff. Too bad they charge $$$$$$$$$$$$