Orb of light seen above clouds with unusual acceleration patterns

Around 1:16 A.M., I was heading west down Montgomery Rd., just passing Middleburry Dr. The sky was dark and cloudy; the clouds themselves were low. Just above the clouds, I noticed a glowing orb/light traveling east towards my car. With no one behind me, I decided to slow down so that I could get a better look. The object itself was low enough that the light emitting from it was peeking through, almost like a flashlight under a blanket. It maintained a slow but constant speed for about 3-5 seconds, then accelerated into a rapid zig-zag pattern before shooting off into the distance and disappearing almost instantly. I’ve lived in this city for 22 years and I’ve never seen anything like this. It’s common to see commercial airliners flying in this area, however the rapid zig-zag patterns and the speed transition I witnessed are absolutely impossible to replicate with any aircraft of that size. The object was also significantly smaller and flying at a much lower altitude.