What exactly severe penalties???
Name them.....printing, breeze blows your shirt up?
That was taken care of long ago so Yankee tourists wouldn’t go into vapor lock.
In Florida, if you are exercising permitless concealed carry (assuming it passes) and you print or flash, you are subject to open carry penalties.
If you have a concealed permit, then you are protected.
790.053 Open carrying of weapons.—(1) Except as otherwise provided by law and in subsection (2), it is unlawful for any person to openly carry on or about his or her person any firearm or electric weapon or device. It is not a violation of this section for a person licensed to carry a concealed firearm as provided in s. 790.06(1), and who is lawfully carrying a firearm in a concealed manner, to briefly and openly display the firearm to the ordinary sight of another person, unless the firearm is intentionally displayed in an angry or threatening manner, not in necessary self-defense.
(2) A person may openly carry, for purposes of lawful self-defense:
(a) A self-defense chemical spray.
(b) A nonlethal stun gun or dart-firing stun gun or other nonlethal electric weapon or device that is designed solely for defensive purposes.
(3) Any person violating this section commits a misdemeanor of the second degree, punishable as provided in s. 775.082 or s. 775.083.