A mobility scooter driver managed to give police the slip following an 8mph chase along a busy road.br br Dozens of concerned motorists dialled 999 after spotting the man slowly travelling along the A14 in Northamptonshire, UK, at around midday on Sunday (1512).br br Phone footage shows how the rider forced other drivers to take evasive action as he ambled along the major commuter route for at least two miles.