VL 249 F1

[Max Nemtsov]

guys, could someone with a good ear please help the stumped translator?

Vineland, p 249:
DL in the meantime had come straggling back to Berkeley, to the workshop 
off San Pablo, with Howie and Sledge, either loyal to the end or just in 
shock, walking slack for her, and found they were just about all that 
was left of 24fps.

"walking slack for her" - the exact shade of meaning? i'm suddenly at a 
loss with the preposition: do they just tag along - or do they cover her 
back somehow?
thank you
Mx
-
Pynchon-l / http://www.waste.org/mail/?list=pynchon-l