I think this got overlooked in the AASHTO 2023 thread, but I did drive these two interstates recently and they are signed (I-335 entirely, while I-344 is only signed with trailblazers). The I-240 extension, however, has not been signed yet, so I would hold off on that for now. Link to my pictures of these routes on AARoads:
https://www.aaroads.com/forum/index.php?topic=34805.msg2954011#msg2954011
