Mop and Broom Night out

Once a year, on Halloween eve,  Mop and Broom, who live in a janitorial closet, escape for a glorious night out under the stars on a Manhattan rooftop. Both have preened themselves –  Mop has adorned with fresh Brillo pads, while Broom has combed out his straw.

At the stroke of midnight, under the spell of their lowly lives, they return to their closet to live in darkness another year. This time may be different. They are plotting their escape.  (Read down.)

(Click to enlarge.)

Will they succeed? Check back in the wee hours of this night. Hint: When  they flee, the moon must be at apex.