[chayos]

I too initially thought it met the criteria of PSK until I found this on the Federation website:

SITUATION 14: Team K is in a fourth-down-and-12 situation from K’s 28-yard line. K1’s punt goes beyond the expanded neutral zone and then rebounds behind the line of scrimmage where it is recovered by R7 at K’s 25-yard line. During the time the ball was beyond the expanded neutral zone, R holds K8 at K’s 42-yard line. Is this a post-scrimmage kick infraction? RULING: No. The kick ended behind the neutral zone.

http://www.nfhs.org/sports/football_interp.htm