Traffic was backed up when motorists were caught stuffing their pockets after a truck carrying more than US$30,000 ($45,000) in cash lost its load.
Last week Michigan motorists saw it raining cash when a truck on a Grand Haven motorway lost a load of money.
Drivers jumped at the opportunity to pick up the cash, but police are now demanding motorists hand back the cash saying "finders keepers" is no excuse.
"Officers temporarily closed traffic lanes and were assisted by witnesses with picking up the money," the department said in a statement Thursday.
Initially, $3550 was recovered and returned to the owner who had forgotten the cash box was on the truck's bumper.