Certain embodiments provide emergency release bracket systems for use in connection with vehicle signage. The emergency release bracket system includes a mounting bracket for operably connecting to a vehicle. The mounting bracket includes bent out tabs and mounting plate attachment holes. The emergency release bracket system includes a mounting plate for operably connecting to vehicle signage. The mounting plate includes tab windows and tab slots. The mounting plate is adjustably and detachably coupled to the mounting bracket by mating the tab windows of the mounting plate with a portion of the bent out tabs of the mounting bracket. The mounting plate is secured to the mounting bracket using removable couplings extending through the tab slots of the mounting plate and the mounting plate attachment holes of the mounting bracket.