*Coupon valid for 30 days at any Hoffman Car wash location. Limited time only. Program may be discontinued at any time. One offer per person. Terms and conditions may apply. New entries only. We have the right to refuse any request. Each coupon has been assigned a unique bar code. Once used, that bar code will be null and void. Certificates with a used bar code will not be accepted or honored. Coupon cannot be redeemed for cash. Face value of $20.00 may be used toward the cost of an upgrade to a car wash of your choice. Certificate may not be combined with any other coupons or offers.