The officer would have made a roadside demand under section 254(2) of the Criminal Code. 2) Where a peace officer reasonably suspects that a person who is operating a motor vehicle or vessel or operating or assisting in the operation of an aircraft or of railway equipment or who has the care or control of a motor vehicle, vessel or aircraft or of railway equipment, whether it is in motion or not, has alcohol in the person's body, the peace officer may, by demand made to that person, require the person to provide forthwith such a sample of breath as in the opinion of the peace officer is necessary to enable a proper analysis of the breath to be made by means of an approved screening device and, where necessary, to accompany the peace officer for the purpose of enabling such a sample of breath to be taken.
This demand can be made anywhere, including private property and off a highway.
After blowing a "warn" section 48(2) of the HTA kicks in 48(2) Where, upon demand of a police officer made under section 254 of the Criminal Code (Canada), the driver of a motor vehicle or the operator of a vessel provides a sample of breath which, on analysis by an approved screening device as defined in that section, registers "Warn" or "Alert" or otherwise indicates that the concentration of alcohol in the persons blood is 50 milligrams or more of alcohol in 100 millilitres of blood, the police officer may request that the person surrender his or her drivers licence.
Driver is defined under section 48 as:"driver" includes a person who has care or control of a motor vehicle;
As for appealing the 3-day suspension, Section 48(9) states: (9) There is no appeal from, or right to be heard before, the suspension of a drivers licence under this section.
I'm not sure if there is a right tho appeal "after" the suspension.
Hope this helps.