Hmmm, an interesting notion.
Please read my comments through the lens that I write form nothing more than hazy remembrances of a 10year old watching CBC news and a lot of day dreaming.
When the looong political/public drama finally results in the pipelines being shut off, I think you'd see a response similar to that of the FLQ Crisis.
The reaction of the federal government would include RCMP intelligence and public safety branches mobilized, CAF attempts to take over oil facilities and open safe passageways on the Transcanada for tankers. All of this would be met by resistance, passive at first. The provincial leadership would have fan public opinion to an inferno, and the armed resistance, secretly organized, would include some key defections from the CAF with heavy arms, orchestrated by Stanley Waters, and outraged private Albertans as militias.
Ultimately a stalemate is reached with no bloodshed. After a few cold months, the Feds attempt to push forward. Shots ring out at one barricade, and the the gloves come off. CAF units, loyal and break-away, are reluctant to escalate, but the fired up militia and private groups advance on Federal positions. Few are successful, but many are wounded and killed. Things have now gone too far.
Sabotage of infrastructure (pipelines, transmission lines public buildings, federal officials) would nullify any success the Feds have when they can bring overwhelming force to bear. No oil moves east and everyone is pissed.
St Peter has negotiated/strong armed an secret alliance with BC, Saskatchewan, and Manitoba, but neither SK nor MB would not be able to offer much in the way of help, representing more of a buffer of space to the might available in Eastern Canada. MB could redirect Hydro exports southward, and SK would see this as an opportunity to release their agri-business from the confines of the Wheat Board.
Quebec and Ontario are staunchly opposed to Loughheed's actions, but separatists in in Quebec see an oppertunity. Maritimers openly support the Western policies but begrudge the affect on their already stagnant economies.
The US, still suffering from the oil shortage, expresses support for the break-away freedom loving and much oppressed Western Alliance in return for guarantees of of energy deliveries. The US does not provide much in the way of material support until things get out of hand. Federal convoys being routed through the US are stopped at the border, forcing them through the long prairie expanses.
The CAF would be torn. Sworn to support the Canadian government, some would be swayed. The majority, of units are based in Ontario or Quebec. The personnel is also largely from central Canada with strong Maritime representation. The Western alliance would make its appeal to based on the perceived inability of the Federal government to deal with regional issues. The senior leadership at this time is heavily salted with Ontario/Quebecois. Organization would be complicated if the flash-point coincided with activities in support of redeployment of units to Germany or NATO exercises. The majority of units stay loyal, with the notable exception of those based in Alberta and Manitoba. In these units, Easterners openly opposed to the Alberta actions are replaced by the reserve and militia counterparts. The CAF leadership has its hands full securing the major bases and large weapons systems.
Britain is aghast, Europe generally amused, while several smaller countries siezing opportunities to deal with the Western Alliance. Germany hastily withdraws its training units from CFB Shilo before they are caught up, and their equipment falls into pro-Western hands. The USSR sees this an the unraveling of NATO, and a possible threat (everything is a threat to USSR in this period). If the POD happens late enough, the USSR may take a chance and extend their Afghanistan operation right through Pakistan. China waits patiently, but holds exercises off Taiwan.