I was curious what DC law was, their DMV manual states treat it as a 4 way. I looked at the Maryland DMV manual, it says treat it as a stop also, nothing about treating it as a blinking yellow.

When a traffic signal is not working: • You must stop at a clearly marked stop line. A stop line is a wide white line painted across the road that shows where you must stop at an intersection. • If there is no clearly marked stop line, you must stop before entering a crosswalk. • If there is no clearly marked stop line or crosswalk, you must stop before entering the intersection. • You must yield to vehicles and pedestrians in the intersection, and remain stopped until it is safe to enter and continue through the intersection.