George Bourzikos, owner of the Greek Village Restaurant in Silver Spring, says the deer smashed through the window, shattering glass and causing customers and employees to scramble to protect themselves.
All three animals trashed the restaurant for a bit and then fled out the front door.
The deer then tried to hide inside a nearby Giant Food store - this time entering through the automatic door. The deer ended up in the store's bakery section where it was euthanized by a Department of Natural Resources officer.
No word on what happened to the dogs.