in fact he/she would not see you even if there was nothing around except for the bus stop and you;
sometimes it is done on purpose because the person simply does not give a damn about you standing there and waiting
Jake: Damn buses and damn Jackson!
Jake: Yup, the bus broke down and the other one was to come in 20 minutes. I saw Jackson in his Taurus, I waved, but of course he pretended that he didn't see me. Sorry-ass passer-drive!