Depends where you live. In SF, parking alone is more than $300/mo if you have to pay for a spot. Also, many companies subsidize Waymo rides for employees as part of their commuter benefits.
They are often still offered as benefits to the employee.
Offering Waymo and taxis as "commuter" benefits (meaning, to/from the employee's home) to the employee is considered taxable income to the employee unless it's used so rarely that it is considered a nontaxable fringe benefit.
As this creates payroll headaches, most companies outside of perhaps a few in the Bay Area do not offer Waymo or taxis or black car services or Uber/Lyft as "benefits" to the employee.
This is different from the kind of travel costs that can be expensed by employees (i.e., for business trips, client meetings, etc.).