The incident occurred about 12.15pm on the corner of Frederick and Cumberland Sts, Senior Sergeant Darryl Lennane said.
The parking officer's scooter was struck by a utility vehicle whose driver had, moments earlier, been issued with an infringement notice, he said.
The male driver then allegedly threatened the parking officer with a crutch, before police arrived, he said.
The driver was spoken to by police, but investigations were continuing, he said.
The parking officer, a middle-aged woman, suffered a ''sore lower back'' as a result of the incident, Snr Sgt Lennane said.
She is understood to have undergone medical checks following the incident.
Snr Sgt Lennane could not yet say what prompted the incident, or whether the officer's scooter had been rammed deliberately.
Council regulatory services acting group manager Adrian Blair said in a written statement yesterday the parking officer was ''resting at home''.
''Thankfully, the parking officer involved was not badly hurt ... but this has been an upsetting incident.''
