Getting a German driver's license

I finally bit the bullet and organised myself to exchange my Australian driver's license to a German one. The thing about living in Germany is that it is quite difficult for non-Germans to find any sort of official information about German rules and regulations. So I was researching quite a bit on the internet about this subject before I went to the Ordnungsamt and found that every region in Germany has different agreements with; not only different countries but also different states. After many hours of research online I found a passage that stated that a Victorian driver's license and be directly exchanged into a Hessen driver's license - no tests, no driving lessons, nothing. Fantastic! Because I heard that to get a German driver's license from scratch would not only require doing driving lessons (again) but also doing a certain amount of hours on first-aid as well as having to study the hundreds of street signs that Germany has (and in some cases, doing an eye test from a certified eye doctor). So I printed this passage out (it was all in German) and highlighted the parts that were important (like not having to do all the tests again).

The only funny thing is, I got the husband to call the Fuhrerscheinstelle (license people) to ask them once again whether it was possible, and the first thing the guy on the phone said was "Nein!" and even though the husband explained what we found online, he was still pretty quick to say "Nein!" so I thought I should just take my chances and go there in person.

I went to the ADAC beforehand and got my Australian license translated (for like 55 euros but as our car is insured with ADAC, we were able to get a discount with it) and off I went. I came very prepared and again, asked to have my license "tauschen" and of course the first thing the lady in charge of international licenses said to me was "Nein!" and that I would have to do the driving lessons and first aid training to get one, so I showed her the internet printout I had, to which she read very carefully, again and again - then said that I need to get my eyes tested and come back to her with the results, to which I said "Nein!" and got her to read further to the paragraph where it said eye tests were not necessary.

So she was not impressed with the fact that I was telling her how to do her job but reluctantly processed my license, only I will have to wait 5 weeks for it and I have to get a date of issue from my Australian driver's license, which we don't have, but ok so I guess that's the other challenge.