Opelhaendler = service company ?

I wanted to go to the Opel dealer today to buy a plug for Din on ISO , I drive to the yard , wonder me arg empty today , park my car . go to the door . Zu , Stands on the sign Saturday until 12 o’clock opened look at my radio clock is 12 :02 . Look at me around all the roller shutters already below . no more people there . HOW can a Haendler do that at 2 minutes after 12 is no more employee there ??? Will Opel so catch customers , I can understand s yes at 12 15 , but denk t do times after,if at 2 minutes after 12 is no longer there. i.e. they must have already closed the shop before 12. I got soo drueber excited,because I’m job-related the week from off the road and can not to any Heandler. and I need my car, now I have to wait until next Saturday again, i.e. drive again a week, with m car without radio reception, is important for me, since I am a lot on the highway on the way so I need traffic jams,… H Have you ever seen such a thing happen to your friend before? *sehr vergert * flo