Liverpool Man in Encounter with Sting's Son

A liverpool man today found himself in Barfly, the popular live music venue, watching a performance by Fiction Plane the lead singer for which is Sting's son Joe . To the liverpool man's surprise, at the end of the gig, Sting's son approached him and asked for his email address. Liverpool Man provided it and is wondering if he was being asked out on a date. The three day rule therefore applies.
If an email is received the following day stings son is too needy and should be ignored.
If the message comes through on day two it is still to needy and that is not cool.
If the email asking out Liverpool Man arrives on day three should I go on date with stings son or dismiss the email for being to predictable by obeying the three day rule?