Get a free Signature Salad At Safeway And Affiliates. Log into your Safeway or affiliate store Just4U account or the mobile app to see if you have a free Signature Cafe Salad available to you! Search under the free category to find it faster. eCoupon is available while supplies last, but doesn’t expire until 3/6/18. If you don’t have an account, sign up now and don’t miss out next time.