My Run In With The Cops<br>Today I went to the grocery store to buy groceries. When I got to the checkout line, I realized I forgot my wallet. I tried to explain my situation to the checker, but she didn't listen. She thought I was trying to steal groceries, so she called the cops. My roommate had to save me by bringing me my wallet.

Based on the paragraph above can we conclude that "The person was detained by the cops before their roommate brought the wallet."?
It's impossible to say