I saw a bright light that looked metallic in mid-day float straight then disappear.

I was sitting on a bench at the waters edge of downtown Benicia enjoying my coffee and muffin before work. I was looking south-bound towards port costa and what caught my eye was this shimmer of something metallic moving very still and straight east-bound. The objects reflection got brighter and my eyes lost focus because I was also facing the sun and could no longer see it or where it went. My immediate reaction was to dismiss it as a small airplane that caught reflection off the sun and then I lost focus of it. That's when I noticed 3 airplanes that I could positively identify as such at much further distances emitting chem trails. One plane was traveling the exact same course as said unidentified object except my eyes didn't lose focus of it despite the sun and was not reflecting sunlight either. The movement of the object was way to still, straight and ominous to be a plane.
Why would I even witness a reflection if the object was between myself and the sun? the light would reflect south and not north in my direction and why did it disappear after it got to its brightest point and in mid-day? What the hell did I witness?