My understanding is that it is one of those where you suddenly end up "proving a negative" somehow. Washington State here, but I thought the core ruling was through BATFE. But it could easily just be "our state is the most Karen state evar and proud of it!"

A condenser actively hooked up, bottles of actual lavender oils, etc ... probably not a problem.

Cleaned up and all packed away... "Oh look, moonshine gear" if, of course, they're being assholes.

Also probably a matter of scale.