Any one way which is cross-border in Europe is going to zing you with a massive one way fee. At least €500, probably more.
I've never had a sticker on the windscreen with a country restriction list - but it is printed in the rental documentation that you'll be given. Going against those rules would mean you were driving without valid insurance cover - which if you had an accident opens you up to criminal prosecution, let alone the costs you'd be liable for.