2009 MAZDA CX-7 Forward Collision Avoidance Automatic Emergency Braking Problems

I purchased a car from Best Buy Motors in Spanaway, WA on [XXX]. Three days later I took the car in for an oil change and my mechanic cited safety issues and identified the rear brakes were faulty and deemed them a safety hazard. I repaired the brakes because I did not want to continue driving them under those conditions. My mechanic stated that the dealership was wrong for selling the car with the brake pads so thin and worn. My bill for the brakes and oil change was $778.28. I called the dealership and asked them to pay for the "parts" $388.08. They talked to the mechanic and came back with parts for $119. They could have fixed the brakes for that amount before they sold it to me. My issue is that they had the car on the lot for over 6 weeks and allowed people to test...