Certainly if you use a big enough gun.
With a pistol or normal gun, probably nothing will happen.
With an anti material rifle you might get some luck if you are close enough.
Or you just take a tank cannon or artillery, those should have plenty of muzzle blast.
It is a indipendant state/country, with a ruling king, enforced borders, its own passports and even a standing army.
Iven if he can't get true diplomatic immunity, I don't think Argentina would trouble a foreign monarch over a 500 peso fine, even if he came back into the country.
In Switzerland it works like that too.
"Normal time" for us is 24h with colon so 18:00
While "Military time" is without colon, so 1800 and is then pronounced as achtzehnhundert (eighteen hundred).
You could just move the immovable sidebar to the bottom or to the right. Or you could enable auto hide.