Does PSK apply?

[GPC2]

A question from our study guide:

Third and 9 from A's 40. QB A2 takes the snap and scrambles. While A2 is in possession behind the neutral zone, B2 holds A3 at B's 49. A2 eventually quick kicks by punting deep. The punt rolls to R's 25 where it is eventually blown dead since no players are attempting to recover. RULING: If accepted, A will play a first and 10 at the 50.

True or False?

Is this a PSK foul or not? PSK doesn't give distinction for down or punt formation, it only says legal scrimmage kick other than made field goals and tries.