I can't remember when our gas was that price here in Northwestern Ontario... just the other day it was $1.419/L!! What are you paying in Edmonton?
We interchange Gas Station/Liquor Store here in Calif. I'm just as likely to say either phrase when needing gas or beer/liquor. But not in North Carolina. I made that mistake only once! I think all gas stations sell liquor here. I don't recall any gas station not selling it.