At 15:57 the mechanic places his hand on the money Nacho left. The nails on his hand extend beyond the nail bed but there is no dirt under the nails, which is impossible for someone working on engines whom only earlier used a rag to wipe his hands.
In the fridge of the McGill/Wexler residence, there are a couple bottles of Teavana Peach and Mango tea. However, Teavana didn't make these bottles until 2017.
When Mike is about to beat Nacho, he pulls a bottle of whiskey out for the both of them to drink. That whiskey was Town Branch Bourbon which was not available during the time frame of the show.
At 37:44 in the top left corner, a crew member appears from behind a bush wandering into view.