I don’t attend a lot of parades (except in San Leon), so I don’t know if this part of the U.S. Flag Code is abused much or not. It appears that, at the time the Code was codified, parades played a large part in the display of American flags. And enough confusion over how to display the flag must have prevailed, because they took the time to include specific instructions for flags in parades.
7(a) The flag should not be displayed on a float in a parade except from a staff, or as provided in subsection (i) of this section.
(b) The flag should not be draped over the hood, top, sides, or back of a vehicle or of a railroad train or a boat. When the flag is displayed on a motorcar, the staff shall be fixed firmly to the chassis or clamped to the right fender.
(i) When displayed either horizontally or vertically against a wall, the union should be uppermost and to the flag’s own right, that is, to the observer’s left. When displayed in a window, the flag should be
displayed in the same way, with the union or blue field to the left of the observer in the street.
(Section 7(a) refers to (i), so I have included it for information.)
This ties in with Section 8, Respect for Flag, sub-section (c), stating that the flag should never be carried flat or horizontal, always aloft and free. Some must have draped the flag across those magnificent fenders of the day.
In San Leon, every occasion merits a golf cart parade, including the Fourth of July. This picture is from the 2006 parade where there were many carts carrying flags, but I liked the looks of this one, in particular. It has one large flag with four smaller one on either side. A simple, yet tasteful display.