is one piece episode 253 filler?

At the Blue Sea Train station, the two employees are talking about how "some guy" managed to get onto the Sea Train but remark saying he'll get captured by the government agents on-board. The two men then notice Paulie and Nami close by and decide to spy on them.

However, they are quickly spotted by Paulie who says that the Sea Train left early. One of the men informs Paulie that the Sea Train had to leave early due to the near arrival of Aqua Laguna.

Paulie then speaks to Nami saying how it's impossible to get another Sea Train that will head for Enies Lobby and thinks Nami is crying.