The pair, 24 and 26, went to the hospital after one of them felt ill.
At some point, they started complaining loudly about the perceived delay and one of them smashed a window.
Two special constables, one female, on duty at the department intervened and they were assaulted by the suspects, police said.
One of them grabbed the female officer from the throat and the other one pushed her colleague.
The officers eventually subdued the...