Earlier quoted context omitted.
At, say, the US/Canadian border? No, not accurate nor realistic at all.
This happened at a US port of entry https://www.cnet.com/news/researcher-detained-at-u-s-border-... He didn't get hit with a wrench, but rather got all his stuff seized by the FBI.
I don't know if you've ever been hit with a wrench, but those two things are nothing alike. Starting with the fact that the FBI might not have gained access to the data in your story.