Not really answering your question, but I used to have a B7 Passat. Not sure if you are familiar with them, but they have the DRL in the lamp next to the fog light. I coded my foglights as DRLs and reduced the brightness to match the original DRLs next to them.
Now what this did was stopped the fogs as cornering light function. This was because the BCM was telling the fog lights (now DRLs) to turn off when the headlights are on. Corning lights work with dipped headlights, so no juice was getting to them.
It could be a similar thing with yours. Something is coded that has inadvertently switched off another function.
Oh, and in a way. it's a good job it wasn't you with the switch in the wrong position. You would have had to surrender your man card for that.