Close. It’s knowing the proper way to make an Old Fashioned. Using bottled mix is sacrilege and in some counties it is punishable by banishment to the central flatlands.
I went to college in Allegany County and had the same problem - most Americans had no problem as long as I said “New York state” instead of merely “New York,” but just about every non-American would think I was going to college in NYC.
In Oregon it’s the average price of a gram of top shelf. 
Seriously, though, a politician from here better know the minimum wage for cities vs rural areas, that would sink someone in a hot minute. In recent times I found Nancy Pelosi standing in front of 25K worth of fancy freezers going on about how she’s getting through COVID lockdown with her stock of ten bucks a pint ice cream to be pretty fucking tone deaf. Especially considering the unemployment numbers for those who work in her district, who have to commute in since there’s no way they could afford to live there.
“Upstate” is definitely a relative term.
I’ve tried explaining it as ‘in New York City, the line’s somewhere around Westchester and ‘upstate’ is the pejorative term. Anywhere north of there, the line’s about 20 miles south of wherever the speaker lives, and it’s ‘downstate’ that’s the pejorative.’
Which Rochester?
And how do you say “Chili”?
– for that matter, how do you say Oregon?
The one where you need to know what it means to order a plate, of course.
With the same i you use for Lima.
South Washington
Cream first! But that’s because my first cream tea was in Devon. I only found out recently that I’m about 5% Cornish, so maybe I should switch?
I thought Rochester you had to know what Brother Wease’s radio station is.
Or 20 miles east of wherever you live if you’re in Western New York.
The pop line.
Where do you buy your walnut bowls?
I can’t think of a single Missouri- based question that won’t piss off at least half the people in the state, starting with the most basic of all:
Missou-REE or Missou-RUH
Of course you can try saying “M-I-Z” and seeing if the politician answers “Z-O-U” But since Kit Bond went to Princeton and U. Va., John Ashcroft went to Yale and the University of Chicago, and our current Governor went to the Universities of Hawaii and Maryland, that doesn’t carry as much clout as it used to.
Most of these, like 90+% seem more like tests if you truly are from where you say you are than out-of-touch tests. An out-of-touch politician here in Northern Colorado might not realize there are major traffic issues whereas the Are-You-A-True-Coloradan test is if they call it “Bronco Country” rather than “Bronco Nation”. Two completely different ideas.