Heya folks, I'm doing a second run of the game for any trophies I missed and I think I might have screwed up on the eBook one. Thing is, there's an eBook in Tong's office and I accidentally locked myself out of it. I was just screwing around in the basement of The Hive and came upon a vent. As with any other vent in the game I went through and saw a cutscene with Tong and a Belltower captain. The mission objective was to find anything implicating Tong in the crime involving The Dutchman and the game considers the cutscene as fulfilling it. The other way is of course to talk to Tong himself and convince him to let you in.
As I never spoke to him and he doesn't show up as the bartender anymore I am unable to enter his office to retrieve the eBook. So my question is; Is it possible to enter his office later on in the game? Note that his doorlock can't be hacked and I was stupidly only keeping a single save file.