Sherri is going to search the hospital for the transmitter, using the logic that it would be unlikely to be disturbed there since no one in their right mind would ever attack the hospital.

... And also the logic that it is a place he can comb in his mundane disguise, while being relatively inconspicuous.

He would probably be quite overtaken by the bots if he found it on his own, though, and... might need rescuing? And, despite being sciencey, unless the transmitter uses some kind of organic components, he probably wouldn't be able to get very far with it. (Though I might totally make a post where he opens it up and then goes, "It, um, has some wires. It probably does a thing.")