titans/ravens game

[PackersFTW]

after the titans scored their first touchdown, they lined up for the extra point, and one of the guys on the end of the defense line came rushing across much too soon (he actually ran past the kicker and the ball was snapped and kicked behind him, and the try was good surprisingly), so they called "offsides, unabated to the kicker, 5 yard penalty will be accessed on the kickoff. retry the pat." what i'm confused about is wouldn't it be half the distance to the goal (move from 2 yard line to 1 yard line) and retry? since when can a penalty be assessed 2 plays ahead of time? and by that i mean since the pat was waved off due to unabated, the play never happened, therefor they assessed a penalty 2 plays ahead of time in actuality.