Auckland Transport's media adviser James Ireland told the Herald that a "permanent fix will be done on this section of the road to ensure this problem stops happening".
It is not clear when the permanent fix will happen but, in the meantime, AT will be "painting out the offensive graffiti".
"Mr Upson may want to reflect on the extra cost that his actions have imposed on local ratepayers."
Kahikatea Flat Rd is a busy road connecting State Highway 16 to Dairy Flat Highway.
Upson says the road registers about 6200 daily traffic movements, including a high number of heavy vehicles.
Upson's video has had nearly 10,000 views in 24 hours.