Help! They’re fucking up my credit

I made the stupid, reckless decision of letting my friend use my credit to take out rims and tires for her bf. She is responsible but ig since it’s not affecting her credit, she doesn’t seem to care. Long story short, they haven’t been making the payments, I’ve been having to get on her ass so that she can change the card information otherwise they’re taking it out of my account. What can I do? I literally feel like paying it off & calling the police to get the rims/tires taken away. I don’t even need them or want them but it’s just pissing me off that I’m paying something that isn’t mine.