"He said, I suppose so, and in the end I said, it's a briefcase - we'll just get going.
"He let me go, but it's just bureaucracy gone mad."
Airport spokesman Simon Lambourne said, after taking advice from other officials, that his company was simply monitoring a Transport Agency rule "in the interests of passenger safety".
"There's an NZTA [agency] rule that says taxis can't have unusual, oversized or heavy items in the passenger cabin," he said. But an agency official indicated that the rule simply gave taxi drivers the right to refuse to carry in or on their vehicles luggage that would endanger safe driving, could not be reasonably carried without causing damage, or was dirty or objectionable.
Told of that, Mr Lambourne said the airport company intended discussing the matter first thing next week with the Transport Agency and its traffic marshals "to get clarification about the rule".
In the meantime, it stood by the actions of the official who intervened in Mr Mallard's case.
"Auckland Airport wants every passenger to have a safe taxi journey to and from the airport and we support the traffic marshals raising luggage safety concerns they have with the drivers."
Mr Mallard said it was nonsense for the company to suggest the official was looking after his safety, as his bike was wedged in behind the front seats, making it more secure than if a seatbelt was used. "Of course drivers should be able to refuse unsafe or dirty stuff, but it's totally lacking in logic and sounds like someone who's got nothing better to do, trying to rationalise a stupid decision."
Mr Lambourne said the company was not trying to discourage passengers from sharing taxis.