ROP, twice in one game

[just another ref]

Originally Posted by packersowner

If you have warned both teams and let them know in pre-game is definitely deserved.

2-12 Timers Duties

Art. 4 Sound a warning signal 15 seconds before the expiration of an intermission or time-out, immediately after which the players shall prepare to resume play..........

On top of that, many places an official approaches the huddle at the first horn to say, "First horn, white! Let's go!" (stupid and redundant imo)

Assuming part of this procedure was done, consider yourself duly warned.