A French registered car in the UK caught up in travel restrictions with owner now out of the UK

A person had traveled from France by car to visit relatives in the UK and then had to fly out to Ireland on a family medical emergency ( an expected short duration. ) leaving their French registered car parked up on the road in the UK. COVID travel restrictions then came in both in Ireland and UK forcing the person to remain outside of the UK.
Is there anyway that the French registered car could be moved to a safe location legally when the owner who is not UK national is outside of the UK?