Start the game in Story mode.
Go to the menu and go to Select Character. Create a new character(if 2 are there you need to delete one).
When the intro screen loads up Dashboard it, load the game up again but this time go to Solo Session in the online menu.
The intro will load up and you will be put in a race just with Lamar. When the race is over do the next mission to get the drugs. After that is done switch to Michael(hold down). This will save your character.
Now hold down again and you should see your character at the bottom you can switch to. This will put you back in to the tutorial but your character will be saved and past the stupid race.
Just as a heads up you will get a mission to go to these flats for team deathmatch. I wouldn't do this. Just go in to the blue circle and quit out of it. Switch to michael again and back, you will be in an online session with everyone now!