From March 5, 2015 to March 10, 2015, you can get two free grab bag tokens from reading Leo’s route! You are qualified to receive the tokens as long as you have started his route between February 23, 2015 and March 10, 2015 6 pm PST.
I’m not sure when the tokens will be distributed to you since it said both March 11 at 9 pm PST and March 12 at 12 am PST. It will probably be one of those two days.
Have fun and good luck!