From the handy-dandy SCHSL Handbook:
C. In case of unsportsmanlike conduct on the part of the coaches, school officials, players,
students or spectators of a school, the school will be subject to discipline by the
Commissioner consisting of a warning or reprimand, probation not to exceed a year and/or a
fine not to exceed $300.00.
D. In cases of more serious unsportsmanlike actions, the Executive Committee may discipline
the school by a fine not to exceed $2,500.00 and/or suspension from the League not to
exceed one year.
Schools who violate any of the preceding sections of this article may be subject to a
fine of not less than $25.00 and not more than $2,500.00 and/or suspension for not
more than one calendar year . The League's Statement of Policy concerning
unsportsmanlike conduct is on page A-25.
PROBATION: A team may compete in regularly scheduled contests but may not play in
a jamboree, an invitational event or for a region or state championship.
So...by the letter of the law, the probation is for a calendar year, not a season, so after the expiration date a team is eligible to compete in any contest, including playoffs. BUT...during that time they cannot compete for a region championship, which would be taking place during the regular season within the time period of the probation, so...seeding? Anybody's guess is as good as mine.