Does anyone know if it's possible to exit SFO during layovers? I'm flying YVR > SFO > AUS. Thought I could get some food in Burlingame while I wait. Just not sure how tight restrictions are with COVID and I'd rather not miss my connecting flight. Who knows what's allowed these days, I'm always double checking everything now before going out for any reason. California seems to have some of the tightest restrictions.