(a) Request; Scope. A party may seek inspection and copying of any documents or things within the scope of rule 1.350(a) from a person who is not a party by issuance of a subpoena directing the production of the documents or things when the requesting party does not seek to depose the custodian or other person in possession of the documents or things. This rule provides the exclusive procedure for obtaining documents or things by subpoena from nonparties without deposing the custodian or other person