Illegal kicking on punt by R - penalty

[eyezen]

Gentlemen:

Basketball official here who works the clock at the local HS.

Situation: 4th down and 11? from around the 45 - Team A in punt formation. Bad snap goes behind punter. Team A punter and member of Team B race towards ball. B kicks the ball out, kinda like a pass in soccer (the ball is around the 25 now) and it somehow bounces right up to him and he runs it into the endzone.

My partner and I both were like "well you can't do that" but we didn't know what the enforcement would be.

Here is what the officials did:

Since we don't mike lower level games we didn't know exactly what was going on, but the result seemed to indicate it was 15 yards from original LOS and a first down for team A. I don't know if was automatic or the result of the penalty.

Am I right to assume they got it correct?