Referee Andrew Madley consulted with his assistant before brandishing a red card to a clearly bemused Kilkenny with North End now appealing that dismissal on the grounds of mistaken identity.
Garner went on to make the most of his reprieve to score both of the Lilywhites' goals and, should the FA elect to award the red card to Preston's striker, the club intend to appeal that dismissal too on the grounds of wrongful dismissal.
Speaking after the contest, boss Simon Grayson said: "I'm not doing an Arsene Wenger, I just didn't see what happened. I couldn't see too much because there were bodies in the way and it's a big pitch. I've not had chance yet to speak to Neil Kilkenny and we will look at the situation in the cold light of day."
The Sky Bet League One club now intend to submit video evidence and statements to the FA by the 1pm deadline on Thursday with the case expected to be heard later that same afternoon.