Does look rather suspicious Keith. We get the same thing here. There's a Petro Canada, a Pioneer and a CTC station at one of the major intersections in town and they will be the same price at all three.
I agree! The only way to get them to listen is to boycott one brand, none of this not buying gas for one day thing. They just know you'll buy gas tomorrow. But back to the boycott thing, I would suggest boycotting the store too and not just the gas!