Subd. 17.Posting; trespass.
(a) A person carrying a firearm on or about his or her person or clothes under a permit or otherwise who remains at a private establishment knowing that the operator of the establishment or its agent has made a reasonable request that firearms not be brought into the establishment may be ordered to leave the premises. A person who fails to leave when so requested is guilty of a petty misdemeanor. The fine for a first offense must not exceed $25. Notwithstanding section
609.531, a firearm carried in violation of this subdivision is not subject to forfeiture.
(b) As used in this subdivision, the terms in this paragraph have the meanings given.
(1) "Reasonable request" means a request made under the following circumstances:
(i) the requester has prominently posted a conspicuous sign at every entrance to the establishment containing the following language: "(INDICATE IDENTITY OF OPERATOR) BANS GUNS IN THESE PREMISES."; or
(ii) the requester or the requester's agent personally informs the person that guns are prohibited in the premises and demands compliance.
(2) "Prominently" means readily visible and within four feet laterally of the entrance with the bottom of the sign at a height of four to six feet above the floor.
(3) "Conspicuous" means lettering in black arial typeface at least 1-1/2 inches in height against a bright contrasting background that is at least 187 square inches in area.
(4) "Private establishment" means a building, structure, or portion thereof that is owned, leased, controlled, or operated by a nongovernmental entity for a nongovernmental purpose.
(c) The owner or operator of a private establishment may not prohibit the lawful carry or possession of firearms in a parking facility or parking area.
(d) This subdivision does not apply to private residences. The lawful possessor of a private residence may prohibit firearms, and provide notice thereof, in any lawful manner.
(e) A landlord may not restrict the lawful carry or possession of firearms by tenants or their guests.
I hate legal speak, I can see how this could be taken both ways, but whats the point of the sign in the end if they still have to inform you to leave before its a violation? I was always told that the sign is the same as the store owner telling you to leave, but I suppose thats just the safest way to look at the situation. in the end, if its concealed no one should know unless you have to use it, and if you have to use it the $25 fine is the least of your worries.