score:6
You are considered an individual who is "traveling to work in the United States", which falls under "essential travel". The US only cares about why you are entering the US, and not why you left.
You can also contact the port of entry ahead of time just to reassure yourself: for example, if crossing from Tijuana into San Ysidro, the contact information for the CBP office is here: https://www.cbp.gov/contact/ports/san-ysidro-class