She shows her "return trip" from the library, but it was obviously filmed at the same time as the earlier shot of her first heading out:
View attachment 1133121
Note the guy leaving the building and the car waiting at the traffic light. Same dude. Same car. Same
bleeping clouds. She didn't even try.
Ruby did her usual 'put the camera down, film myself walking ten feet, turn around, walk past the camera, turn
back, collect camera and use it as two separate shots' thing. It's not like we'd be confused how she got back home without a recycled establishing shot, so the end result is that she just looks like a lazy idiot to viewers and the general public who saw her filming.