Stop in for a cup of coffee

Well just seen something rather unusual in the sky.

Wife and I were outside, heard rumble, sky is clear so wth, looked to the south east where the sound came from and it looked like chaff dispersed from a c130 or something over the river bottoms. Maybe 3-4 thousand ft AGL. Didn’t have my phone for a picture and the stuff died out fast before I could get back outside.

No aircraft or anything nearby though.