Yes, familiar with it, and its application
That's because I listen to a lot of zydeco, broadcast Monday nights on KNON, FM 89.3 in Dallas, with a couple of genuine coonasses spinning the disks.
With reference to Robert's reply below: I surmise that the use of "coon" as an alternative to the N-word may originate in a euphemistic code word. "Goin' coon huntin'" might have been a phrase substituted for the intended purpose of gathering at night with horses, dogs and rifles.
But that's only a guess. I'm a Yankee, too