Love the message, but the blurb isn't correct. Police couldn't not arrest them because it would define them as a woman, outraging public decency and similar laws don't require specific genders.

actually proud of Scotland for once, not the government but the people

I cannot imagine being a cop in this country the laws are just totally arbitrary and you'd have to enforce them even though they make zero sense.

It's grotesque enough to still be a problem, I'm sure. Perhaps the laws haven't caught up to stunts like these and that's why they are getting away with it?

Nudity is legal in the UK for everyone, that's a non story. UK is not America.