Illegal or not it probably isn't the best idea to display your hardware like that, what do you have to gain for all the hassle it will cause?

I know that in Ontario we can travel with an uncased, unloaded gun in a vehicle with a licensed driver (so its under their care and control, the gun can't be left unsupervised) but if I tried it I'd be pulled over by SWAT by gunpoint, we gun owners know the gun laws better than the cops do, I imagine that even if its within your rights and your not breaking any laws you will still create big headaches for yourself, and may get your guns stolen.