Other mistake: When Melina picks up Quaid on "I19", the car seat is an integral part of the door. When Quaid gets out of the car after crashing on the street, the seat is an integral part of the chassis.
Other mistake: In the chase scene on I19 Hauser pushes the throttle forward to accelerate but in the police cruiser the throttle is pulled backwards to accelerate.
Answer: First off, they made such a big deal about it because it was the key to a more involved message from Hauser and they wanted to make sure that he knew it was important. But regarding the safety deposit box, after the phone message from Hammond, Quaid got a text message that told him a bank name and a box number.
Garlonuss ★