Federal officials said they are intent on maintaining the enforcement efforts as they seek to achieve the president’s goal of mass deportations.

“Better get used to us now, cause this is going to be normal very soon,” said Gregory Bovino, a Border Patrol official in charge of Los Angeles enforcement, told Fox News on Monday.

Later that day, Mr. Bovino wrote on social media that his agents might return to the park that they had swarmed earlier: “We may well go back to MacArthur Park or other places in and around Los Angeles. Illegal aliens had the opportunity to self deport. Now we’ll help things along a bit.”