I bought my BMW 7 series from their dealership. I ...

I bought my BMW 7 series from their dealership. I ve had the worst experience. Its been 2 months and no one from the dealership ordered my tags. My temporary tags have expired and the dealership manager told me to drive my car with expired tags. They basically just said theirs nothing we can do and It will take them atleast 3 weeks to get my permanent tag from DMV. Now I cant drive my car God knows how long.
Their service is the worst. No one ever responds back to your email.
All they care is about selling the car and after that no one cares. You are own on your if you have any issues.
Worst place to buy a car ever.