You can get out of the map but climbing onto the boxes just before the first obj and walk through the adjacent wall.
[2453.19] Log: Log file open, 08/14/13 16:41:40
[2453.19] Log: Dumping BugIt data chart at 2013.08.14-16.41.40 using build 8710 built from changelist 22519
[2453.19] Log: MapName: OBJ_CanaryWharf
[2453.19] Log: Description:
[2453.19] Log: BugItGo 577.9443 -1400.5514 -17.8500 -660 -2447 0
[2453.19] Log: ?BugLoc=577.94,-1400.55,-17.85?BugRot=-660,-2447,0
[2453.19] Log: ---=== GameSpecificData ===---
[2453.19] Log: Log file closed, 08/14/13 16:41:40