Hourly people (including those working food services) would not get tested as they would then be forced to quarantine. They cant afford to lose 2 weeks of pay and potentially their jobs so they would avoid the test all together. Given a choice of going to work and potentially infecting others or losing their jobs and their kids going without food most are going to skip the test and go to work.

Additional safety nets are required to incentive those people to get tested. The only way to do that is to ensure they receive their pay, their jobs are secure and the test and treatment is free.