unauthorized auto repairs
I took my car to an auto repair shop to check my brakes because they were making a sqeaking noise. I told them I didn't want them to the repairs because I wanted a second opinion. I went to get my car after work and they claim to have done the work and they want me pay them over $500. I asked to take my car for a test drive before I pay them. I can't even tell that any work was even done. I told I the car was the same. I didn't sign anything and I told them I am not going to pay for unauthorized repairs. They gave me verbal estimate for $300. I was mad because they are trying to cheat me. I took my car that night when they were closed and parked in friends garage. What is the best way solve this problem?