I didn't hear a single word about THIS failure to cover heart during anthem....

Standing is the military mode.

how could he possibly reach it from there?

he interesting thing is that this all creates crisis.

(1) when the flag is displayed—
(A) individuals in uniform should give the military salute at the first note of the anthem and maintain that position until the last note;
(B) members of the Armed Forces and veterans who are present but not in uniform may render the military salute in the manner provided for individuals in uniform; and
(C) all other persons present should face the flag and stand at attention with their right hand over the heart, and men not in uniform, if applicable, should remove their headdress with their right hand and hold it at the left shoulder, the hand being over the heart; and
(2) when the flag is not displayed, all present should face toward the music and act in the same manner they would if the flag were displayed.

Or is he just reaching for the pistol in his shoulder holster?

I am sorry to inform you but the heart covering is a recent newbie thing re the anthem. Or maybe you know that. Standing is the military mode.

(b) Conduct During Playing.—During a rendition of the national anthem—
(1) when the flag is displayed—
(A) individuals in uniform should give the military salute at the first note of the anthem and maintain that position until the last note;

(B) members of the Armed Forces and veterans who are present but not in uniform may render the military salute in the manner provided for individuals in uniform; and

(C) all other persons present should face the flag and stand at attention with their right hand over the heart, and men not in uniform, if applicable, should remove their headdress with their right hand and hold it at the left shoulder, the hand being over the heart; and

(2) when the flag is not displayed, all present should face toward the music and act in the same manner they would if the flag were displayed.

(Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1263; Pub. L. 110–417, [div. A], title V, § 595, Oct. 14, 2008, 122 Stat. 4475.)

The Independence Hall Association says the Flag Code, adopted first in 1923, requires those who are not members of the Armed Forces or veterans to face the flag and stand with a hand over their heart. Men in these crowds are told to remove hats or other headwear with their right hands and place them over their left shoulders