Just dropping this here possibly someone with prior/similar experience can chime in. As I haven't quite came across this scenario.
I'm looking to apply to AP via Humanitarian reasons. I am grandfathered under 245I so risking AP travel wasn't on the priority list.
So My grandmother (whose a GC holder) passed away last December in Mexico, it was also her wishes to be buried in Mexico . We have a death certificate and proof showing she is obv my grandmother. I didn't get to see pay my respects in person. I would love to see her resting place. Now, will her being a US resident be an issue or do they not look that deep into each case?

Second point: has anyone traveled to a second country under AP? say If I go to Mexico then South America or Europe with my valid Mexican Passport?
Cheers!