July 27, 2011 No Comments Free Taco at Qdoba Mexican Grill Text FREETACO to 67463 to opt-in to receive special offers from Qdoba. You will receive a FREE taco of your choice for opting in. No purchase necessary. Locator. Note: the offer is valid for 2 days after you text. – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.