Faster than Mach 9.6 or almost 7,000 mph. WAY FASTER!

I'm a 18 wheeler end dump truck driver, and on the 28th of July, I was at a land fill called Rio Salado.  Just south of the I-10 on 7th ave.  I had just got done dumping my load of concrete and was on my way out of the land fill.  I needed to ((use restroom)) first before I left the land fill, so I pulled off the haul road and got out of my truck ((deleted)) by the truck fuel tanks.  
I was ((using toilet)) and I just looked straight up into the sky, while I was going, and I saw a incredible sight.  Right above me was a very strange looking contrail that was being produced but it was being produced so fast.  It was at a incredible speed.  WAY faster than Mach 9.6 or almost 7,000 mph.  I know most commercial planes fly about 500 miles a hour and produce contrails sometimes and you can see them because they fly so slow.
Not this very odd contrail it was moving so fast it had to be 5 times faster than Mach 9.6 or almost 7,000 mph.  So I looked way ahead of the fast moving contrail and I saw it.  It was a black swept wing looking aircraft the size of a commercial craft like a 747 and the contrails that were coming out looked puffy and strange.  This craft was moving so fast FAST FAST it went from right above me to almost out of sight in less than a minute.  From one side of the sky to the other in 60 seconds or so.  Aircraft cannot fly that fast its impossible.  
As it flew out of sight I saw two other contrails being produced bearing down on the fast contrail and you could see they were following the real fast contrail but could not keep up..  It was crazy!