well for transport you dont need a lock on it , and you have to keep it unloaded (long arm)
they also say if you not in the car you should hide the gun..
for hand guns you need to keep it in a good locked box , or in a locked pistol case out of site.
now for storeing them. i would stay keep them the same way that you would transport them.
also keeping you antique handgun in your glove box it not going to work (even if your govebox locks,)
also print this off and keep it in the gun case.
nfa.ca/content/view/150/199/
rcmp-grc.gc.ca/cfp-pcaf/fs-fd/antique-historique-eng.htm