Levi is delusional and Dwight should have taken the 5th
The 'laying on of hands' is something that will be accepted by everybody as the proverbial 'knowing where to put the X' and making sure things are properly in place, and at first they will be busy catching up, and then at some later point they will ask, and at no time will they actually believe it was anything other than making sure the thing went 'click'. Everybody knows something clever just happened and as part of the game everyone plays along because it's a brief moment of fun in a shit day at the office.
Dwight's story sounds like one that would only work in places where voodoo was a significant part of life and the victim would have to be sufficiently unaware of technology or having touched the on/off switch. And every workstation afterwards then had this 'kit' next to them? Really?
This was a lot of theatrics to take the piss out of someone who was worried about her job, not some rightfully deserving persistent bad-mannered arsehole, for no reason other than to be mightily impressed with oneself and the expression on the doctor's face was actually one of fury before cancelling a service contract due to the engineer being a c**t.