Alice turns off the lights in the gas station, so the sniper can't see her as well, an exterior shot shows the lights going off. After Doug gets shot, there is an external shot of the gas station and all the lights are on, even though no one turned them back on.
The bullet holes on the Ford car hood, which the Sniper fired to disable its alarm, were clearly illogical based on the line of sight he had.
There were a few occasions where Camille Rowe spoke to the Sniper without pressing on the walkie-talkie.
The best way to escape through the back door from the garage was to smash the padlock rather than the hasp on the door. As an alternative, there are many hammers on the shelf which she could easily use so that she could dismantle the padlock.
Between 27:51 and 27:56 the clerks head can very clearly be seen moving and when her eye comes into the frame it is seen to be open and then closes.
Literally in the first 10 seconds of the movie, Erik calls her phone...on her phone it says it's a 'FaceTime Audio' call, but in the next shot when she answers her phone, it's suddenly a 'FaceTime Video' call.
When John is filling the car up at the gas station, assuming he filled it, if it had lost all of it's fluid, enough to turn the gas light back on, that would mean a huge puddle of gas or diesel that you simply couldn't miss by sight or smell.