That's what you wrote earlier:
Yes, I've flown to France, speak NO French, and vowed never to fly there again! At the time, they refused to speak English with me. I guess they didn't like the German registration on my aircraft..... (enough French bashing.... sorry, I couldn't resist).
You story seems a bit different now...
My advice: if you live and work in germany, learn german, this is the minimum you can do to be polite and respectful. Unless it means nothing to you.