I just had a funny thought. Fort McMurray is probably a few hundred spots down the list of important destinations to enable Supercharger travel for, in terms of actual use, but: would it be a public relations victory? For the cost of three or four Superchargers, Tesla could demonstrate to the world the fact that long-distance travel by car is possible without burning fuel, right in the heart of an oil extraction region which has a very poor environmental reputation. Focus the spotlight on the poor energy return from putting energy into heating up tar, versus generating electricity in a renewable way and using that to power transportation. To really do this right, Tesla would have to buy the electricity from a renewable energy provider, not from the general Alberta sources which ARE powered by fossil fuels. Either that or install a whole lot of solar power along the route.
Wouldn't this play really well in the U.S. media especially? There's a huge backlash there to "dirty tar sands oil" and the Keystone XL pipeline.
Just a thought experiment...