If you are going to write a short story, you don't need to make things up entirely.
You should always use as much creativity as you can, but you can also take elements from real life and incorporate it in your story.
Keep it short
Always paraphrase
Never put your opinion of the issue
Reread to understand what you're writing about
Make sure to add the main idea
Si fueras una reina / rey, realmente no tendrías ninguna ley que hacer ... ¡Tú las haces!
I'm not sure what your options are, but here's what I've come up with:
The reason for our tardiness was because we got stuck in traffic.
