The newspaper Jack looks at has a date in June 2018, but the calendar on Ashley's bedroom desk and the date on the package in the evidence room is for June 2017.
After Ashley's cell phone battery dies, she successfully makes two calls before she puts it into a charger.
At the very beginning of the film, while Ashley is waiting to be picked up at the movie theater, an SUV pulls over to the far right lane, but its left turn signal is blinking.