This is a tidy shop, there’s nothing to immediately tell you this has been altered.
It looks like AI to me. The arrangement of the LEDs in the sign make no sense given that the number has to change and the details on the far away road looks weird.
The sign’s legs also don’t make sense.
It’s got that AI sheen, but those are pixel based displays, so look OK to me.
There’s two lampposts growing out of each other and everything in the photo casts a shadow in a different direction.
I would expect a display like that to use pixels, but the displays in the picture do not use pixels. Notice how the LEDs follow the contour of the “5”. True pixels would not follow the contour and would instead have visible “stair stepping” on the contour.
Yeah, I see it now.
It’s certainly AI.
The far away details are clearly fake. There’s a lamp post that just fades out of existence, random junk where there should be road, and the bushes change shape across lamp posts.
The 5 on the interstate logo also has a telltale, it’s all weird but the rest of the text on the sign is pixel perfect.
The British flags on the highway marker makes little sense.
It’s AI crap.