A bicyclist impeding traffic?

Can a bicyclist be cited for impeding traffic? Many cyclists assume that if they’re
legally in the roadway because the lane is too narrow for a motorist and cyclist
to safely share the lane they are immune to an impeding traffic citation.
This is a tough question with no black and white answer. But the short answer is yes,
a cyclist, even though legally occupying a narrow lane may still be vulnerable to
a citation for impeding traffic IF they knowingly refuse to pull over when the flow
of traffic is impeded for an extended period of time.
In the eyes of the law there is little difference between a 90 year old
driving an automobile or a cyclist traveling @ 15 mph with a line of cars stacked up
behind them. Both operators are subject to the impeding traffic law.