Auto answers

So I bought a car on May 7 from a dealership. I paid cash. The dealership said that they would mail me the title/odometer reading/etc within a week.. it’s just their standard procedure. I say that that’s fine, wait two weeks only to receive nothing in the mail, call the dealership who says that they’ll send it out the next day. I wait another week and call them again – they forgot and will overnight it to me. By the time I get this overnighted package with the materials I have 2 business days to register my car. I go to the DMV the first day and they say that the dealership didn’t sign my title so I get it signed later that day. The next day I go to the DMV only to find that the odometer readings on my title were incorrect and due to a stupid mistake the dealership managed to make it look like the odometer went backwards 30 miles while it was in their care. At this point I call the dealership who needs to get a new title issued from the state and send it to me. They say it’s in the mail. My car was supposed to be registered 3 days ago. What would you do? Is this a breach of contract? Could I get in trouble if pulled over? I love my car.. but this is messed up.