Just looked at Google maps. Almost none of Canal St is in the quarter. Actually none of it is “IN” the quarter, a small portion of it “BORDERS” the quarter.
The very low numbers 40s etc. border the quarter, NOT the 700s.
Canal separates the French Quarter and the Central Business District. The 700 block is between Bourbon and Royal.
I used to have a place in the Quarter a block and a half from what would be the 400 block of Canal. (Between Decatur and N. Peters)