But, I have to disagree with you about making things harder, not easier. Let's take a look at one of the exceptions to the preemption law;
Not prohibited by chapter
Sec. 4. This chapter may not be construed to prevent any of the
(6) The enactment or enforcement of a provision prohibiting or
restricting the intentional display of a firearm
at a public
(I picked subsection 6 out of simplicity of argument.)
As you can see, the preemption law states in most of the subsections about FIREARMS
being able to be banned by the city, in certain situations, at their discretion.
So by that wording, they can prevent you from bringing your rifle into a public meeting. But
, if we look at the bottom of the same section of code...
"However, except as provided in subdivision (5) concerning a
building that contains a courtroom, a unit may not prohibit or
restrict the possession
of a handgun under this subdivision in a
building owned or administered by the unit if the person who
possesses the handgun has been issued a valid license to carry
the handgun under IC 35-47-2."
... It provides an exception to a "handgun" carried by a person who has a carry license.
If you were to carry an NFA compliant SBR, or any other weapon that has a barrel less than 16", like a P-90, or otherwise is defined as a "handgun", the city cannot stop you unless it is a building containing a courtroom.
I've tried to debunk this theory myself, but I've not come across any other laws that would prevent this from occurring.