When the janitor is going up the escalator and sees Pinky (wearing the tiger mask) going down the escalator, the janitor gets to the top of the 'up' escalator, but there is no 'down' escalator to the right of the 'up' escalator.
The washer on display wouldn't be connected to any water lines. Maybe it would be plugged in, but its functionality would be limited. At most, it would dry, not wash.
After shooting up the tiger rug, the janitor follows the pink prints up the escalator, then goes down a hall to the rugs department, where the same tiger rug is found. The same tiger rug could not be in two places, on two separate floors, at the same time.
A sign in the rug department advertises "zebr" instead of "zebra" skins.