EMS on All the Streets

Aaron: [Standard Greeting]
Doc: Yes.
A: [Standard Greeting]
Doc: This is Dr. Schaffer.
A: (very long pause) Ok.
Doc: And I have detected EMS on... well all the streets. In Seattle.
A: All right... I'm afraid I don't know what EMS is.
Doc: Well, I'd be willing to come on TV and explain it.
A: Well, you called a radio station.
Doc: Huh?
A: Only radio stations are located in this building not TV.
Doc: No TV?
A: No.
(long pause)
Doc: Do you have their number?
A: No.
Doc: You don't have their number?
A: No.
(long pause)
Doc: Ok. Sorry to bother you.

(Click.)

The only thing that I could think of that EMS might stand for was Emergency Medical Services, as in ambulances, which if ambulances are on the streets doesn't seem like a big deal or bad thing unless they're transporting people who are sick or injured. But even then those people are getting medical care. But the Doc's tone was one you might use if the zombie apocalypse was starting outside. On a whim I looked up EMS and the only medical things I could find were Electrical Muscle Stimulation (a method of training to complement traditional training), Equine Metabolic Sundrome (which affects horses), and Eosinophili-myalgia (an incurable and sometimes fatal flu-like neurological condition).

Hopefully he's a crackpot and it wasn't that last one.