timing issue...

[kdf5]

3-4-2...The clock starts on the ready...

a. For an official's time out, except if B's awarded a new series or either team's awarded a new series following a legal kick.

b. Because the ball has become dead following any foul provided in either a. or b:

3. The action which caused the down to end did not also cause the clock to be stopped.

If an interception stops the clock without the penalty, then rule 3-4-2 says you start on the snap.