I certainly wouldn't call it a stupid question.
I think they're mainly nocturnal, so you'd have a better chance at night. I just don't know if they'd respond to the sound or not though. Maybe go with a bird or rodent sound to be less intimidating?
I know people have called in raccoons. I called in a possum once.
I'd say get near a body of water, like a creek or river, locate some mink sign so you know they're around, and give it a try.
Then post pics!