"I parked my car somewhere knowing it could be towed because I didn't feel safe leaving my car where they wanted us to leave them.
"I did not feel safe at work. I chose to walk nowhere near the wharf because of the damage."
Three crew members did not go to work on Monday because of the earthquake, the worker said.
"One of them said no because she has kids. I was told by someone that she is going to have a stern talking to."
Strait Shipping spokeswoman Wendy Pannett said the company, which owns Bluebridge Ferry, understood that some staff would have been nervous.
"Apparently one staff member did not want to come to work - everyone else turned up with a smile on their face to help get the vital link between Picton and Wellington up and running again.
"Our team has been working tirelessly in difficult - but not unsafe - conditions this week and we are extremely grateful for that.
"If any staff remain concerned about their safety we'd ask they talk to their supervisor and raise their concerns. Our absolute priority is staff and customer safety."
CentrePort has resumed some parts of its business after operations were suspended "until further notice" on Monday, because of damage to buildings, wharves, roadways and liquefaction at the port.
Pannett said the company was given the all-clear by structural experts to open parts of its operations on Monday to get the Cook Strait link running again.
The Wellington City Council urged workers to stay at home on Monday as a result of the damage and disruptions to public transport from the quake.