Fouls on a Scoring Play

[JugglingReferee]

Originally posted by FredFan7
First and goal on the B 5. A34 runs for a TD. During the run B91 commits a five yard face mask foul at the two yard line. After the play B's coach runs out to the hash mark arguing for a holding foul, bringing an USC foul on B's coach.

Where do you enforce the penalties, on the try or on the kickoff? Or at all?

There is no 5-yard FM in Canada. They're all 15. Also, 10 yards for OC on the coach.

Both go on the try.