Chris here is what you should do:
When the oil is changed again check it in the morning. See where they left it. Then see what it does, btw with a true synthetic you really need to check them after the car has been sitting awhile. They take forever to drain down.
Around here the dealers use 0w40 or that new 5w40 in all the cars, try a 40 weight oil.
I wouldn't be worried about a quart or so every few thousand miles, or KM's whatever you guys use up there.
