Owners need to give prior notification of early closure either by updating operating hours, adding to their voicemail, turning off the lights, or even as simple as posting a sign.
I assumed that I would be okay to stop by a half hour before closing after a long day of work but nope - no dice. I'm empty-handed and all the others have closed now.
Was referred here by a friend, but it was unfortunately a really frustrating experience for me and my time was totally wasted. I can't recommend.
FWIW, the owner sounded really nice when she finally called back.