Technically, the time would be logged on Line 4, On Duty Not Driving.
Any interaction with police, DOT or emergency services must be logged that way. And the fourteen hour clock keeps running nonstop unless you log a minimum of eight hours in the sleeper berth.
This will likely qualify under the Adverse Driving Conditions rule, which allows for up to two hours additional driving time due to unforeseen events which could not be reasonably be predicted at the start of the day.
The split break rules are not well understood and caused many violations in the paper log days. Elogs have eliminated this.
Learn about split breaks
here, if you are interested.