You should respond to communication in a timely manner.
Evan's mother sent him a text to find out where he was.
Evan wants to respond to his mother.
Evan texts his mother back to tell her where he was.
Evan waits until he gets home hours later to tell his mother where he was.
Evan's mother doesn't worry about him while he is gone.
When Evan gets home, he realizes that his mother has called the cops to report him missing.