Update to my whole story for those who were curious
I took the Oath on the 7th and flew to the USA that same night, couldn’t postpone the travel because I had to attend E3. So it appears that Canadians can request emergency passports at the Consulate so I did that, requested my passport in LA on Monday and got it today just in time for my flight tonight. They issue a temporary passport that is gorgeous but that we cannot keep unfortunately. I’ll have to go exchange this passport for the real one when I’m back in Montréal
Happy ending to a 9 year long journey, genuinely good luck to everyone, the light at the end of the tunnel is very close !