Exactly. As ive said my friend's status ran out before AIP and he was fine , he even talked to a CBSA officer before AIP as he had to get a police clearance. I'm pretty sure if open work permit is submitted with the inland sponsorship it has implied status, The work permit is approved with AIP so why should there be implied status after AIP, I would send an application to extend as visitor online before your status runs out on Monday if they dont receive your inland sponsorship appication before your current status runs out. I don't know why you waited till the last minute to submit your application though. My friend submitted his even without the police clearance just to make sure they got it before his status ran out. He has AIP and an open work permit now.