An idea that Canada could borrow

The Purple Heart is US military decoration awarded to those injured or killed while serving with the branches of US military. As a result  the colour purple is associated with US military veterans who have been wounded while serving their country. 

A movement has emerged in the United States to provide designated parking spaces for wounded veterans.

US Military veterans standing by a purple parking spot in Ohio
(Source: http://wkbn.com/2015/11/02/purple-parking-spots-in-warren-honor-wounded-veterans/)

US Military veterans standing by the sign explaining the purple parking spot in Ohio 
(Source: http://wkbn.com/2015/11/02/purple-parking-spots-in-warren-honor-wounded-veterans/)

Sign explaining the purple parking spot in Ohio 
(Source: http://wkbn.com/2015/11/02/purple-parking-spots-in-warren-honor-wounded-veterans/)

Seems like a very reasonable and humane thing to do.