Quarantines or embargoes provided for in subdivisions (4) and (5) of § 2-16-3 shall be established by the director only after a public hearing. Timely announcement of the hearing shall be given to interested persons by mail or by two (2) announcements in newspapers serving the area affected. When in any case, in the opinion of the director, the delay necessary for the holding of the hearing is likely to cause serious harm or would in any way seriously handicap a control program, the director may establish a temporary quarantine, effective immediately and remaining effective for a period not to exceed thirty (30) days, during which thirty (30) day period a hearing shall be announced and held as stated above, and the continuation and maintenance of this quarantine or embargo beyond the thirty (30) day period shall be dependent on the hearing.