The day I bought my used 2015 Hyundai Accent here,...

The day I bought my used 2015 Hyundai Accent here, I drove it home. As soon as I stepped out of the car, I noticed a hubcap had fallen off. Clearly is was on wrong. I called the dealership and they immediately started giving me the runaround, stating "you can buy those used for like 20 bucks". So what happens when something more serious than the hubcap falls off my car? Very bad first impression.