Thanks all, for the input! As it turned out, I had forgotten a black blazer at the office and it was roomy enough to layer over the sweater. I felt more put together wth this addition and as my date showed up wearing a button down, a fine gauge sweater and super, mega awesome metrosexual cognac shoes... it worked out just fine.
We were the ones dressed the most "formal" at the restaurant; surprisingly packed for a week night (if we hadn't made reservations, we would not be able to get a table...) of fleece jackets (-2 Celsius was as low as temperatures got and that's sure not low enough to break out the ski fleece middle layers for out here!) and wool dresses.
@Sarah: Don't trust the hype. This grey jacket looks much warmer than it actually is. It is super cozy, there you are right, but because is so loose and blanket-y like... it becomes a nightmare on windy days. It flows around and opens easily (there is just one single hook on the collar to close it). But... just in case you got hooked... it is from Chicwish and they still hv it. In grey, white and beige.
@peacechick: The grey jacket was the outside layer, so no issues there. By removing it once I entered the bar, I was pretty OK. I just had a long sleeved cotton tee below the sweater.