Elon Musk took to Twitter on Wednesday as the deal loomed

Only a few more days left to complete the acquisition of Twitter and set off another court date, billionaire Elon Musk walked into the company’s San Francisco office Wednesday with what appeared to be a porcelain bathroom sink in his hands.

“Getting into Twitter HQ – let that sink in!” on Tesla and CEO of SpaceX tweeted with video of his entry.

A person at the company confirmed to CNBC that Elon was visiting today and noted that there is some internal concern about what will happen to people on foreign worker visas. This person, who declined to be named, discussing internal matters, said employees are trying to keep working despite all the attention being paid to the deal and despite reports that Musk may gut the place with massive layoffs. Some employees say they feel like if he buys it, he can “burn everything down if he wants to.”

Staff at the office were briefed on the visit, according to an email shared by reporters from the CNN and Bloomberg.

The sender, whom Bloomberg identified as Twitter’s chief marketing officer Leslie Berland, wrote that Musk would be in the office this week, “meeting with people, walking the halls and continuing to dive into the important work you all do . If you’re in SF and see him around, say hi!”

The email also said officials would hear from Musk directly on Friday. A Twitter spokesperson declined to comment on the report or Musk’s tweet.

Earlier, Musk changed his description on the social media service, where he has more than 110 million followers, of “Chief Twit.”

Musk has until 5:00 p.m. ET on Friday to complete his deal to buy Twitter or face the prospect of being sued again. Twitter sued Musk when he tried to get out of their $44 billion merger agreement, claiming that Twitter was not forthcoming about spam and bots on its platform, which it said would have resulted in a material adverse effect. Twitter denied this.

A Delaware Court of Chancery judge set the deadline on Friday after Musk said he would still be open to buying Twitter. Twitter, not taking Musk at his word, wanted the court to stay involved. Ultimately, the judge postponed the original trial set for last week and gave the parties until the end of this week to complete the deal or she will set new trial dates for November.

CNBC’s Laura Kolodny contributed to this report.

WATCH: How Elon Musk’s plans to acquire Twitter rocked Wall Street and social media