The Tauranga City Council's transportation manager, Martin Parkes, was unable to throw any light on why someone got out a pot of paint.
"We can't point the finger at anyone."
However, the lines were illegal and the council would be removing them, he said.
Mr Parkes said if people had a problem with parking outside their homes, they were free to phone up and chat to the council.
"We would look at trying to sort it out. Any requests for parking restrictions are investigated."
He said the bigger problem from people taking issues into their own hands was that it could create more problems by forcing vehicles into an unsafe situation.
Cars will move somewhere else and the question was where.
"It could put motorists in a more dangerous position."