I wrote this earlier regarding the 21-Gun Salute which covers all the bases regarding counter-arguments (stuff like "It's not safe" or "Wikipedia is wrong")
As for the cold-weather winter overcoat counter-argument you just have to propose that they wore it to have the excuse of not having to display full military decorations, and what kind of honour guard won't bear with the cold to show inaugural presentation anyway?
I wrote this earlier regarding the 21-Gun Salute which covers all the bases regarding counter-arguments (stuff like "It's not safe" or "Wikipedia is wrong")
https://greatawakening.win/p/11SK2cglAz/the-21gun-salute-applestoapples-/c/
If TL;DR, give them this at the minimum (17-gun salute at Arlington with 3-gun battery at 5 second intervals):
https://youtu.be/O9TEdwYu36M?t=51
As for the cold-weather winter overcoat counter-argument you just have to propose that they wore it to have the excuse of not having to display full military decorations, and what kind of honour guard won't bear with the cold to show inaugural presentation anyway?