Great job. Happens a lot. Glad to see you got it fixed. Me being me would be sending these right to the manager that insisted it wasn’t them.Thank you for the suggestions to pull the blower motor!! I took it apart (took literally less than 3 minutes after watching a YouTube video). Turns out there was a tiny leaf that had gotten into the fan, probably when they replaced the filter. I put it back together and there was no more noise!!
Thanks again everyone!! Saved me a trip to the dealership.