They do escorts down here for funerals, and most folks pull to the side/change lanes... but I've never seen anyone park their car (in traffic), get out and do any kind of salute to a perfect stranger. Maybe in a small town, where you know who's passing but can't attend... but in a big city...
Lest we not forget "Up a creek without a paddle"... though my Murphy's Law Abiding self I say "Up the creek without a boat"
As to car parts... TRUNK, as in suitcase, used to be strapped to the back/top of a carriage. Thus when the carriages started having built in storage compartments (no...