Alberta businesses need more help despite new COVID-19 restrictions exemption program grant They describe a work environment where they are routinely grilled about COVID-19 vaccine certification policies, with a small number of customers becoming belligerent and intimidating.They describe the added work of enforcing COVID-19 restrictions as exhausting and stressful.In response, some restaurant operators have hired security guards to review vaccination records and identification before allowing customers to sit at a table.But in most cases, the responsibility falls to front-of-house staff — a largely young, part-time and low-wage workforce that’s already under strain from an industry-wide labour shortage.