When you think about it...it's only fair that a person without status should not benefit from an expedited process of their PR application (by submitting Outland). Perhaps this is a penalty, of sorts, for those that have...by having to endure the `tortoise lane' in the race to PR! LOL!
Having said that...if CBSA does find out that a person has submitted an inland application and is out of status, they can request CIC to expedite the processing of the application to reach a positive stage 1 (AIP), to satisfy their requirement to not remove the person. That doesn't mean that anyone that applies, and is out of status, will receive such a gift from CIC. This is why the old language (that was in the inland guide) stated that "...a person without status can still be removed from Canada at any time."
IMHO, I agree with screech; you should stay put and submit an Inland application. It's possible (although perhaps not probable) that you could be denied re-entry into Canada, if you leave now.