FWIW, looks legal to me, I wouldn't want to be the test case though.IC 35-47-9-2
Version a
Possession of firearms on school property or on a school bus; felony
Note: This version of section amended by P.L.172-2013, SEC.13.
See also following version of this section amended by P.L.158-2013, SEC.601, effective 7-1-2014.
Sec. 2. A person who possesses a firearm:
(1) in or on school property; or
(2) on a school bus;
commits a Class D felony.
IC 35-31.5-2-285
"School property"
Sec. 285. "School property" means the following:
(1) A building or other structure owned or rented by:
(A) a school corporation;
(B) an entity that is required to be licensed under IC 12-17.2 or IC 31-27;
(C) a private school that is not supported and maintained by funds realized from the imposition of a tax on property, income, or sales; or
(D) a federal, state, local, or nonprofit program or service operated to serve, assist, or otherwise benefit children who are at least three (3) years of age and not yet enrolled in kindergarten, including the following:
(i) A Head Start program under 42 U.S.C. 9831 et seq.
(ii) A special education preschool program.
(iii) A developmental child care program for preschool children.
(2) The grounds adjacent to and owned or rented in common with a building or other structure described in subdivision (1).
As added by P.L.114-2012, SEC.67.