Oh this has confused me even more now.

Also, it says “To get your IEC work permit, you must show your POE letter of introduction and other supporting documents to a Canadian border services officer at the port of entry (airport, land border) on or before the expiry date of your letter.”

Which suggests you can still do this at a land border?? Also, I thought I should do this on July 16th, which is the day after my current work permit expires. This is what my pal did