Now that it's been mentioned, I guess the Zed's lock is a bit stiffer than other cars I have, even without any interference from the steering. About the same as a small residential deadbolt but less than a big heavy Medeco lock. As long as it's somewhere in that range and assuming the steering isn't contributing any drag, there isn't any dragging, grinding, or catching sensation, all should be OK.
(it's funny peculiar how many Yanks have never heard of the letter 'Zed' (no offense randyf), after all even Canadians use the term. We all need to get out in the world more.)