After the window is shot out there is some glass in the lower right hand corner but when ressler jumps through it there is no glass.
The paint scheme of the Polish police car, the police lights and the uniforms seen in the scene where Liz and agent Ressler are in the taxi are not correct. The police lights in Poland are either blue or red and blue. The cap badge is the white eagle, which is also the state symbol.
In scenes that are supposed to take place in Poland, very few cars have Polish license plates.
The gray Mercedes S class taxi in Warsaw has sealed beam headlights, which were only used in the USA. European cars had regular headlights with halogen bulbs.
Episode takes place in Poland, but the headline pictures are of Budapest.