Law /
Visa Stamp if you overstay (American with a Polish Wife) [29]
Their advice is entirely wrong: leaving the Schengen zone does
not give you a fresh tourist visa. If you have been inside the Schengen zone for more than 90 days in the past 180-day period, legally you should be refused entry when you try to to re-enter. And even if you do leave and come back, you are still illegal from the time when you hit the magic 90 days in any 180-day period. Frankly, leaving for a day or two is either pretty much pointless (if you’re under 90 days, as you only then get an extra day or two) or the very worst thing you can do (your passport shows you are illegally in the Schengen and you wish to show it to immigration officers twice!).
The question is when did you apply for your karta pobtyu? If you applied 45 days (might be 30 days, I’d need to double check) or more before the tourist visa (i.e. the stamp in your passport) expires, the foreigners office are legally required to issue a decision with regard to your karta pobtyu. I say ‘decision’ because they are not required to issue the card within that time (and can take up to a couple of weeks to issue it).
So it basically depends on how long ago you filled your application. If it was 45 days or more before the tourist visa expire, you're golden. If not, you really need to make sure you don't get busted for something stupid like jaywalking. Personally I certainly wouldn’t bother going to Norway either way: it’s a waste of money at best and a chance to be refused entry to the Schengen zone at worst.