Appointments and walk-up vaccinations are available at the sites. Thursday was the first day of the expanded hours. The Chula Vista site maintained a queue of about two dozen people until around 7 p.m. “The ones that haven't come in now don't have any excuse,” Chula Vista resident Jerry Escalante said. "I got here around 6:30, maybe 7, and just to be able to come here after work, that was very helpful." "I work until 5 so it would be really difficult for me to take off work to come here, so it really benefitted me to be able to go to work and then come here to get the vaccine,” fellow Chula Vista resident Adam Ashoor added.