A practitioner and an operator of a crematory or reduction facility may rely on the representations made by an authorizing agent and are not guarantors of the reliability of those representations. A practitioner and an operator of a crematory or reduction facility have no responsibility to contact or to independently investigate the existence of any next of kin of the decedent. An individual may file a petition with the appropriate court to obtain the authority to be authorizing agent: If the individual alleges that permitting one or more of the individuals with priority under § 5-509(c) of this subtitle to authorize arrangements for the final disposition of the body of a decedent may cause substantial injustice; or If, considering all the circumstances, an individual other than an individual with priority under § 5-509(c) of this subtitle had a closer personal affinity to the decedent and should be allowed to make the arrangements. Pending the outcome of a petition filed under this section, a practitioner shall suspend any arrangements with the individuals under § 5-509(c) of this subtitle.