After-Blessings (Bracha Achrona): Changing Location: Did Not Intend To Continue Eating

Situation You did not, at the time you said the fore-blessing, intend to continue eating along the way. You then ate at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread or mezonot within four minutes.
What To Do When you say the after-blessing, you should return to where you began eating. However, if you continued eating mezonot or bread while traveling, you may say the after-blessing in either place.
Note It is the proper practice to say a new fore-blessing (since you did not intend to continue eating along the way when you began eating) in the vehicle in which you are traveling. But even if you did not say a new fore-blessing, you may still say the after-blessing in the vehicle.