We could n't even exit the train because of the crowd about 500 people deep ... no kidding . It took us probably 20 minutes to make our way about 5 feet . It became so bad at one point that in order to get us moving , I literally screamed at the top of my lungs EXCUSE ME ! ! ! ! Rest assured it echoed throughout the train station , but the impatient American in me could n't handle it anymore .
According to the above context, answer the following question.
How might this person be described in this situation ?


They are frustrated with the massive train crowds .