Well Good luck Caliber. It seems everything is server side....even on the story mode....
No it's not, the game can be played offline. You just need to register the game with your rockstar social account.
how long does it normally take to make a trainer for a newly released game?
they're pretty fast usually. Just be patient and check back often. You can also add titles to your tracked titles by clicking on the "TRACK THIS TITLE" checkbox at the top of the page. If I recall correctly, you'll get notified on Trainer updates.
[Edited by imaculate, 4/13/2015 9:52:21 PM]