TIM HORTONS’ POOPERim Horton's Pooper

Horton's > singular possessive / Hortons' > plural possessive

For that reason, she was stopped by an employee who told her she’s got to order something prior to using the restroom.

she has to = she's got to
(I suspect usage varies based on reason)

So they got into an argument, fought for some time, and then, eventually, the woman did something really awful and nasty which makes her CSI -title worthy.

This isn't a grammatical mistake so much as a stylistic choice. When noun phrases modify another noun or noun phrase, they can take hyphens to make the meaning more clear.

Now, two questions: Wwhat would you do in her place?

After being restricted from using the restroom, the woman puts her back against the partition, takes off her pants, furiously shits on the floor, takes napkins from the counter, gets the poop off the floor, throws it at the employee, wipes her bits and immediately runs away.

This isn't wrong, but I wanted to comment.

This is what's called a run-on sentence, or a sentence that is exceedingly long. In America, I think most of us are taught not to write them in grade school. It's not incorrect, it's simply difficult to read.

Also, you used present tense here. That's not incorrect either, but be aware we generally have two narrative modes we use in English, either in past or present tenses (you can combine them). For spoken English, switching between those two modes is probably okay and still natural sounding, but it can be jarring in written English.

For both run-on sentences and narrative mode you might receive excessive corrections if natives aren't used to it. If you use these, be sure you're using them with intention.

The story happened on May 16th of, 2018.

A woman broke intoentered a Tim Horton’s restaurant with a serious need tof usinge the restroom.

'Tim Horton's' is the name of the restaurant.
'broke into' means that she entered without permission -- 'entered' should be used here instead

There was a problem, however, that she wasn’t aware of.

The problem iwas that only Tim Horton’s customers can use the restrooms.

For that reason, she was stopped by an employee who told she’s gotr she has to order something prior tobefore using the restroom.

So they got into an argument, fought for some time, and then, eventually, the woman did something really awful and nasty which makesde her CSI title worthy.

Whatever your answers will bare, you won’t be able to match the woman’s act of choiceguess what the woman did.

After being restricted from using the restroom, the woman puts her back against the partition, takesook off her pants, and shit furiously shits on the floor, takes. Then, she took napkins from the counter, getspicked up the poop off the floor, throwsew it at the employee, wipesd her bits and immediately runsan away.

everything should be in past tense here! The sentence was too long so I broke it up into two parts.

TIM HORTONS’ POOPERim Hortons’ Pooper

Let people use your restaurant’s restrooms if you don’t want to end up being in the CSI segment of our speaking club!

We are going to Langley, British Columbia, which is in Canada.

Theis story happened on May 16th of 2018.

A woman broke into a Tim Horton’s restaurant with a serious need of usingn urgent need for the restroom.

There was a problem, however, that she wasn’t aware of.

For that reason, she was stopped by an employee who told she’s gotr to order something prior tobefore using the restroom.

So they got into an argument, and fought for some time, and then, eventually, the woman did something really awful and nasty which makes her CSI -title worthy.

Whatever your answers will bare, you won’t be able to match the woman’s act of choiceions.

After being restricted from using the restroom, the woman puts her back against the partition, takesook off her pants, and furiously shits on the floor, takes. She then took napkins from the counter, getsscooped the poop off the floor, throwsew it at the employee, wipesd her bitsself, and immediately runsan away.