Embassies aren't always up on real life and practice, I've found.

When I moved here, it was as the fiance of a Swiss citizen. The Swiss Consulate in Chicago (the only one I was allowed to deal with, because of districts) told me I needed to apply for a visa directly from them, submit all of our paperwork to get married, etc. with them and wait quite some time.

They also told me I"d have to have quite a few things translated into German, at considerable cost from them. None of this was necessary from the local offices.

The person who handled the marriages in Dietikon (where we were married and where my husband lived then) told us no, just come in a day or so after moving there, fill out the paperwork and take it from there. I had my L permit within 2 weeks, or less. After we were married, I automatically received my B permit.