
Regan Thomas, from Telford, was caught in a Mercedes C Class on the A55 at Old Colwyn, Conwy, north Wales, on December 8 last year.
A test found he had benzolecgonine - a breakdown product of cocaine - in his system in a quantity above the legal limit of 50 microgrammes.
Thomas, of Fylingdales Drive, Doseley, Telford, pleaded guilty at Kidderminster Magistrates Court to driving with a controlled drug above the specified limit.
He was banned from driving for a year and fined £80. He must also pay £117 in other court costs.