The Referee (as well as each of the other game officials) would observe a substitute (in this instance a kicker) enter the field WITHOUT satisfying the requirements of 1-5-f, an official TO would be declared, requiring compliance with NFHS 1-5-4, PRIOR to the kick being attempted. "
(if, unfortunately & highly improbably, the lack of required equipment was NOT observed and the play was completed as suggested, the Referee would have the opportunity to determine whether the situation would call for application of NFHS: 1-1-6, and what an appropriate remedy ("in the spirit of good sportsmanship") should prevail.
Presumably the Referee, as well as his crewmates, would have retained their usually keen observation responsibilities, exercised the proper protocols and avoided the necessity of the Referee having to address and deal with this unnecessary cluster****.