I'm pretty sure you're classified as an essential worker so you'd definitely be fine! I also had some unauthorised work but mine was before the order came through to let international kids work full time! I called a lawyer and she said that most likely it would not be a problem in any way, and I also submitted a Letter of Explanation just to admit to my mistake and make sure they knew.
I applied on the 18th of June from Ontario too so I'd say you're fine, it's just taking them time to work through the applications.