if it’s in view of the public it doesn’t matter whether you intended for someone to see you or not, a child could have walked along and been permanently scarred when they realize that all humans have penises and pee….
but really that’s the way they treat it. if the cop sees it, they’re obligated to charge you with indecent exposure… you knew you were exposing yourself when you unzipped….
i actually had a cop tell me to pee in a rolled up magazine… as long as they don’t see your dick there’s no list.