49-year-old also gets suspended sentence
A woman from Cregneash drank a bottle of vodka, and a bottle of vermouth, before getting behind the wheel.
Forty-nine-year-old Naomi Callister, of Sound Road, appeared at Douglas Courthouse for sentencing.
She had previously admitted drink-driving on 20 July - the court heard a member of the public had spotted her Hyundai at Four Roads in Port Erin just before 7pm.
The driver followed Callister home - watching as she weaved into oncoming traffic and clipped a kerb.
When she stopped and went indoors the witness rang police and when officers arrived Callister had difficulty walking.
At Police Headquarters testing equipment showed she was more than three times over the legal alcohol limit.
Callister was handed a three-month jail term but magistrates suspended it for two years.
She was also banned from driving for five years.
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