If your university has already reported you to CIC as no longer enrolled, your status ended when you ceased to comply with your student visa. From that point, it may have been 90 days from when you stopped attending classes until your permit expired (although, it could have been the day you were no longer attending classes, I'm not sure, regulations are unclear to me).
So, if your university has already reported the date you stopped attending classes, the time for your status to expire has started ticking. If you can get an application in during the time your status is still valid (and again, I'm not sure when that is) you may be eligible for OWP.
If you instead have an enrollment letter issued, apply for visa extension or change the terms of your admission based on that enrollment letter, and do not actually intend to attend classes again, you will be misrepresenting yourself, which is dangerous.
TL;DR: talk to your school's international student office. They are the ones best positioned to tell you your institution's CIC reporting policy and how they may have reported your status, and to give you options to ensure that you have status.
