3d) Approval of Retroactive Second Amendment to Agreement No. BOS 20-118 with American Guard Services, Inc., in the Amount of $0 for a Total of $374,720, to Provide Armed Security Guard Services for Persons Placed in Quarantine Due to the COVID-19 Pandemic, Effective August 5, 2020 Through a New End Date of July 31, 2022 (Original End Date: August 1, 2021)