Police have stopped drivers overnight claiming to be "picking up rice from a friend" who lived more than 90 miles away and "going to Ireland to collect a dog".
The two cars that were halted by police had travelled almost 300 miles between them.
Officers from Dyfed-Powys Police were carrying out patrols during the early hours of Saturday when they stopped multiple vehicles.
The force's roads policing unit in Pembrokeshire came across one driver who had travelled around 200 miles from Manchester to St Clears.
The car was stopped on the A477 with the driver claiming he was travelling to Ireland "to collect a dog".
After being reported and turned around by officers he told him that he knew he was "chancing his luck".
A tweet shared by the roads policing unit states: "It’s just gone midnight and we’re conducting checks on the A477 at St Clears.
"The first car stopped is from Manchester, over 200 miles away, the driver states he is going to Ireland to collect a dog.
"He is turned around and reported, he states he knew he was 'chancing his luck'."
Police also stopped a vehicle that had travelled from Cardiff to Llanteg at around 1am on Saturday.
Those inside the car claimed they were making the 90-mile journey "to collect rice from a friend".
After opening the boot of the car officers discovered equipment inside linked to cockle picking.
A statement from the roads policing units said: "It’s 1am, a vehicle from Cardiff is stopped at Llanteg.
"The occupants say they’re off to Tenby to collect rice from a friend, however the postcode leads to a beach.
"The driver opened the boot, within were items linked to cockle picking.
"Occupants reported & escorted out of Pembs."
