The Director may amend a prospectus or extend the submission date, or both, prior to and on the proposal due date. The Director may cancel a solicitation at any time prior to award of the concession contract if the Director determines in his discretion that this action is appropriate in the public interest. No offeror or other person will obtain compensable or other legal rights as a result of an amended, extended, canceled, or resolicited solicitation for a concession contract.