RAINBOW SPIKE IN THE SKY FT. LAUDERDALE FLORIDA

So I was driving and saw a moving spike shaped thing in the sky. It was moving like a spotlight shining down at the ground but it was shaped inversely like a spike pointing at the ground instead of a cone . I rushed into a parking lot to get video of it but it just disappeared, completely clear night tonight. It was colored mostly redish pink with hints of blues and purples like a gradient. it moved around even pointed in my direction at one point. Around the north Ft Lauderdale / Boca Raton area at 11PM. wondering if anyone else saw this or knows what it was. I originally thought it was the exhaust plume of a rocket but it was moving around like a spotlight so it threw me for a loop