Only $29.99 +tax Express Detail & Free Full Service Car Wash While You Wait. Choose One: 1. Polish & Wax Express 2. Interior Super Clean Express 3. Carpet Shampoo Express 4. Upholstery Shampoo Express. $34.99 Value - Save $5.00. Larger than a car $3-$5 extra. With this coupon. Exp. 2/28/20. Not valid with other offers.