Jamil Mukadam, 23, who owns an IT company and claims to work at Number 10, was in Dubai along with his wife in February when the alleged incident occurred.
Mr Mukadam, who is from Leicester, was arrested when he returned to Dubai earlier this month.
He also said his parents are 'ecstatic' that he is returning after his experience with the 'absolute shambles' of Dubai's justice system.
His mother, Patricia, said she was 'absolutely delighted' at the news.
A British tourist visiting Dubai is facing six months in prison after allegedly flicking his middle finger at a motorist who was tailgating him.
Harron told her: 'Just stop crying mum, don't be upset anymore.