Those TEL’s are probably just parade vehicles, the actual ones in the field most likely dont sport a high vis look, be a flaming red arrow for any A-10s that would be doing scud hunting.
But yeah, probably something they just do for parades. Though a radar cross-section a vehicle like that would have would mean they probably have little to fear from an airborne enemy actually getting close enough to ever notice the tires if it came to it.