After the final fight between Jack and Cougar, it's still dark out. But when Jack walks Cougar out to the street, it's now daylight and the cops are there.
When the bad guys take Randall's car to chase his girl friend, the key is already in the car. But drunk Randall had just taken the keys so that his friend Jack and the others couldn't escape.
After the security company calls the police, the police helicopter shows up fairly quickly. It never lands to help, then it goes away, and it takes a long time for anyone else to show up.