Or, Just make a comment that has your favorite airport.
Airports service areas about as far as most are going to drive so
it gets you close. Mine are SJC and OAK.
There is a real issue with postal codes and other more specific locators.
A close enough to send a private message hint does make sense.
For me JFK is about a 47 hour drive non stop so if your local airport is JFK I will not be driving your way for coffee
anytime soon ;-)
GEG, or Felts Field should you have a private jet.