I'm going to slightly dispute Alenanno's answer; buses have cords that run above the windows. A bus can stop at any intersection with enough notice, typically you tell the driver you need to stop and then pull the cord.
Therefore, if the party was actually passed by the bus, it's more logical that Evan, Seth and Fogell would have pulled the cord before the incident that caused them to get kicked off the bus. By riding the bus past the party, they made extra work for themselves.
I think this was, in fact, a logic flaw, unless the bus' normal route would have circled around.
Think of it this way; let's say the party was on the corner of Manhattan Ave and 116th. If the bus was supposed to go up Lenox Ave, take a left at MLK and then take another left onto Manhattan Ave, and they got kicked off at the corner of Lenox and 120th, it's logical they would have walked in the opposite direction the bus was travelling because it would have been a shorter walk.