Stuck and unsure which direction to go at this point and what parts of the available information are relevant for this stage (no luck with any of the approaches so far):

- use content of the qr codes?
- anagrams?
- use the markings?
- use the pipes?
- decode the aztec as something else? (since no proper orientation markers, and apparent improbable symmetry suggesting it might not be an aztec code)
- select appropriate pixels from the aztec using markings or pipes, and decode entire code? (the aztec core does not contain proper orientation markers though)
- select appropriate pixels from the aztec using markings or pipes, and decode part of the code? (the aztec core mode message indicates 2 layers and 7 data codewords, so presumably the keypad code is <= 7 characters)

Any opinions or hints to narrow it down?