I feel your pain - I ventured out one night to shoot the soccer fans without the 24/1.4 lens and had heaps of problems because relying on an f/4 lens at night is, suffice to say, not a good idea. 
(though an f/4.5-5.6 lens would've been an even worse idea).
(though an f/4.5-5.6 lens would've been an even worse idea).