Plane Stopped in Midair

Yesterday I saw a cargo jet (a major air express company) come to what
seemed like a dead stop in midair as it was making its ascent. After
about 20 - 30 seconds of hanging without dropping out of the sky, it
continued climbing and apparently did not crash. There's been nothing
about it in the local news but I've still been very concerned. Could
someone here explain how such a thing is possible?

Some details: the temperature was about 50 degrees F, the sky was mostly
clear, and the time was around 0645. I was traveling by car at about 40
MPH on a street that is parallel to a regular flight path. From this
street it's common to see 3 or 4 planes per minute either climbing or
descending; the airport is about a mile or two away from this particular
street.

As I was moving relatively slowly compared to the how fast the jet
should have been moving, I noticed that I was gaining on it. I quickly
eyeballed the area for tall buildings and other geographical reference
points so I could be sure that I had a good perspective and wasn't just
"seeing things". The object was either not moving or it was moving
*very* slowly, and it was not a helicopter. For a few seconds I was
stopped at an intersection looking at this hanging plane and at the
people in the other cars around me. No one else seemed to be paying any
attention to it besides me.

The main reason this bothered me so much is because had the plane
fallen, it would have landed less than a half mile from where I and
about 30 other running cars were, in addition to several warehouse-type
buildings and auto repair garages, plus a 6 or 8 lane freeway filled
with morning traffic. Since the plane had just taken off and was
probably full of fuel, and was still low enough for its markings to be
readable from the ground, the crash probably would have been
extraordinarily disastrous.

I've done a lot of Googling to try to get an understanding of what I saw
and really haven't learned anything meaningful. I'm hoping someone here
can explain how a "regular" jet--versus a specialized military jet--can
apparently stop in midair and not drop from the sky. As a daily traveler
near a major metro airport, I'd really like to be reassured that this is
not a common occurrence.

Debbie