Generated a fully AI "creator" walking out of a subway at 2AM — at what point can people just not tell anymore?

Been experimenting with AI-generated UGC. This whole clip — the face, the voice, the walk — is generated (I used omnigems.ai). No camera, no actor. What surprised me is the "tells" are mostly gone now if you keep the lighting candid (no studio polish), add real skin texture, and let there be natural micro-motion. Studio-perfect is what reads as fake; messy/handheld reads as real. Posting because I'm curious where this community draws the line: is AI UGC fair game for ads, or does *\*undisclosed\** AI cross into sketchy territory? Happy to share the exact workflow if it's useful to anyone.