silver mirrored panes except windshield….

Hey guys, I had all my discs mirrored silver in December except the windshield, there only a silver “keil”. Last general traffic control… 3 points + 50€ as well as the spoiling out from the front 3 corners and side windows *heul* Such A….. 2days time to the show star at the carnival club in green!!! …there I am right to my windshield and that meant that is easy 5h work to remove the stuff and costs at nem 120-150€ for the removal. I felt sorry for the cool cleaning and I negotiated a fair price for new windows to leave the “old ones” in mirrored condition. Actually part cascade price would have been with installation at approx. 580€ (for me 200 with installation). Now my question you get somewhere a document to be allowed to lead the coating officially. Here with me e.g. an E36Coupeof BMW drives around all windows even the front window deep warz has tinted -but Swiss license plate-!!! Does anyone have an idea/experience?