Last time I couldn't get the rock out no matter what I did. Jacked it up, checked both rear heat shields, and noticed my rear right was closer to the rotor by a half inch or so. I bent it back, a rock flew out, and haven't had an issue in 4+ months. I used to get rocks lodged every couple weeks because they did shitty chipseal all around meThis has happened to me 4 times in the past month. Last time I considered lighting the car on fire but not sure if that would’ve helped.