Reckless driver reported on I-80/35 near 131

Special attention, Urbandale State Patrol and Polk County.

Reckless driver last seen on I-80/35 eastbound from the 131.

Our vehicle is a black Cadillac, was riding people's bumpers and cutting people off, flipping people off.

No time delay. Once again, on I-80/35 eastbound from the 131, black Cadillac, cutting people off, riding other people's bumpers.