The "teaser" section of the episode (pre-credits) takes place in Toronto, Ontario, Canada. However, when the night club patron talks to her boss on her cell phone, her boss is on a street in Toronto. However, the traffic signals are all "horizontal" which is not done in Canada (Toronto) but rather "vertical", indicating this was shot in the United States.
Right after Elizabeth shoots the grill cook, we hear the sound of her pistol's slide being racked. Since she has just fired the weapon, all that would do is to eject a perfectly good round, something anyone familiar with guns (such as an FBI agent) would never do. This is typical of the many firearms-related Foley errors in this series.
The tablet password starts being filled in before Ressler touches the screen even once.