The practical approach is doing what they say but lobbying for a better alternative. If they are requiring you bring your car to work, then they should pay the IRS mileage-expense rate, daily. If you are in CA, you can call or go down to the DLSE for free and they can explain your rights under LC 2802, and if you file a complaint you will have some whistleblower protection - though your management career is effectively over. Alternatively, you can reach an agrerment with them to call a cab when necessary to make the bank run. What I've seen other businesses do is to contract with a security-type service that picks you and money up at the business and drops you at the bank, no big deal. Just saying NO is a bad idea.