Question

[jTheUmp]

Ok, so R's foul occurred during the kick, or during the return, and K's foul occurred at some unknown point.

There's a couple of ways it could go:
1a) If R's foul was during the kick:
R declines K's foul, K accepts the penalty for R's foul, and we enforce R's foul from the end of the kick (if foul was during the kick)
OR
1b) if R's foul was during the return:
R declines K's foul, R's foul is enforced under All-but-one (FED) or 3-and-1 (NCAA)... in either case, it's from either the end of the run or spot of the foul, whichever is worse for R.
OR
2) fouls offset, and we replay 4th down.
OR
3) R declines K's foul, K for some reason declines R's foul, and the result of the play stands. There's no real reason for K to do this, but coaches aren't always the smartest people in the room, and if the referee offered the option to K....


Sounds like Option 3 is what happened in your case.

Most veteran officials would offer K's coach options 1a/1b (whichever is applicable) and 2, and not even mention Option 3.