The new fares, which began last month, will be in effect at least through the holiday season.
"We are not ready to pay a new fare now," he said.
The new fares are expected to be announced to the public by Friday.
The new fares, which had been due to take effect today, will probably not be put in place for another week.
The new fares range up to $30 on the longest route.
He added that it was too early to know how many people took advantage of the new fare yesterday.
If approved, the new fares are expected to take effect in June.
These new fares will come into effect from 21 Jan 2013.
The new 30-day fares are good for travel at any time.
It is like buying the new fare for the first time.