Untimed down or change ends??

[BoBo]

Team A has scored a touchdown and no time remaining on the clock at the end of the first quarter. They go for a 2 point conversion. They pass into the endzone where the defense is called for pass interference but A cathces the pass and the try is good. Now can A accept the penalty, the try is good and have it enforced at the succeeding spot/ free kick (kick off).

The question at the time of the score A has a strong wind at their back, does the enforcement become part of the first quarter (untimed down) or has the quarter ended and it is the first play of the second quarter.

Guess this could also occur on a roughing the kicker/holder call on a successful try or field goal as well for another example.

In other words do we kick off the other way (into the wind) or untimed kick with the wind??