ufo sighting

sept 11, 2007, phoenix arizona, usa: along route 51 between northern rd exit and bethany home rd exit (after you drive past mountains) you can see a clear sky over southwest phoenix. it was 9:50 pm and i looked at the sky over the city and saw three round lights in a huge triangle shape. i thought they were just planes until i realized they never moved. even in relation to me driving. then i saw the top one blink out and come back on about 3 seconds later. the other ones did not do that. they also did not have many lights blinking on and off such as a plane would have. when i stared as i was driving really fast, i saw that the shape of the top one was as if it was hovering vertical but on a diagonal, instead of horizontal. i could not see them anymore once i got past where the highway dips down and the walls of the highway prevent you from seeing the sky anymore. the triangle shape made by the lights stayed that way for the whole 3 minutes that i saw them. it was a warm and cloudless night.