Last year, autonomous trucking company Embark announced that it would begin using its Level 2 autonomous semis to deliver refrigerators from Texas to California. Now, TechCrunch reports, the company has taken it a step further as one of its trucks has now completed a 2,400 mile trip from Los Angeles to Jacksonville, Florida. The trip took five days, which included scheduled rest breaks for the driver that was on board, and TechCrunch says that Embark's team is now assessing all of the trip's data. While there's no word yet on just how often the system required the driver to step in, those on board said that the truck went "hours at a time with no disengagements, and when they did occur they were usually only a few seconds," according to Embark CEO Alex Rodrigues. They instead use sensor data and machine learning and the success of this long-distance trip demonstrates that this sort of setup is adequate for highway driving.