HomeCOVID-19 COVID-19CoverHealth COVID-19: Free trials in Palo Alto By Pen 360 Press 2020.12.28 0 1813 FacebookTwitterPinterestWhatsApp Pen sula 360 Press [P360P]. Bay City News [BCN]. Palo Alto officials announced that free COVID-19 testing will be offered every Tuesday, from 10 a.m. to 4 p.m., in the Mitchell Park Library parking lot, at No.