Nice development. I enjoyed your straight forward, a matter of fact narrative style. Very different from the hint throwing prompt style.

As I see it, the prompt allowed for only two extensions: either it was a drug adict or a robot. In your case, the organization was very sound, except maybe for two little moments.

Why would a private investigator work in a cafe as a waitress? This moment wasn't explained. Maybe she was working on some case undercover.

Secondly, the prompt threw a hook "The Charged Up Cafe". The man in a suit, apparently dazed and confused from the lack of "charge" saw this sign and came to be charged up. In your development, you also don't address it. Sure enough, why addressing it if you can make the subject dead or unconscious. But it's like cutting off the limb, like multiplication on a zero. )))

That and the fact that the ending was kind of anticlimactic. Ok, the police investigator was happy that the he'd be able to interrogate the subject and? It needs one more sentence to give it an overall perspective of a sort.

Other than that it was enjoyable to read.

Cheers!