Deadpool rushes Monty back to LL&L headquarters because... he doesn't know what else to do with him. Things really have changed around there. Zoe is now Over Boss, the fate of the world is no longer a prime directive, and Gary Coleman is in a tube of green ooze. Why? Just cause.
Zoe throws Deadpool and his friends into a holding cell and it's up to Monty to convince her to let them out.
When she does LL&L is not happy. Consider her rank as Over Boss officially gone.