About the poem I left in my car

I left a poem in my car,
in the slot at the bottom of the driver's side door,

it was about a closed road and geese landing
in a pond,

there were reeds around the pond
and the road was nothing but smashed rock,
powdered gray earth,

I was stopped at a red light inbetween,
then I was writing as I drove,
pen scratching steering wheel,

it wasn't until I was a mile away
and the car engine cooling down
and the interior heating up in the sun
that I realized I'd left my words behind.