Low flying egg shaped object observed by hospital employees as it flew in front of Hospital

While waiting to exit the parking lot after completing an 8hr shift at the community hospital myself along with two other co-workers each in their own vehicals sat at the red light,we all rolled the windows of are vehicals down to talk to each other when all three of us noticed an amber light which was pulsating moving from our right sight of vision which was moving towards our left.It seemed to be approx  75ft-90 ft in elevation judging from the fact that it was actually lighting up the tree tops as it flew over them.We all thought at first that it was a helecopter which fly by frequently but then realized that it was not one when it flew directly in front of us.It was approx the same size as a police copter but this was egg shaped with no wings,rotors or even sound.At this point it was right across the street from us right above a marie calendars which also was illuminated by this object.Then as all three of us got out of our cars the object instantly in a flash flew to our left and appeared to fly into an industrial area several blocks away seemed to either land or crashed into a large areas of trees near the buildings since it did hit the trees.None of us wanted to follow up on this sighting we each left the area because it seemed to incredible to believe.
Date may be approximate, although the witness does not indicate that fact.  PD