I've followed these instructions completely but I do not see him. Possible bug?
Edit: Well by day I'm guessing you mean early morning?? He wasn't there at 10/11AM but he was there at 7AM the next day.
A full guide is on the game's description box if you need help with their routes.
I just found a bug, if you are on day 9, the event notification will trigger, but the event for finding Ricky will no longer be available. However, you should still be able to find him between Day 7 - 8. I will correct this bug and re-upload the game file.