Because you're giving "use of the car" and not "the car" to the employee. You're effectively saying it costs the company $3 a day to provide that use. So, that's the taxable benefit to the employee.There should be a value assigned to them. Using my company vehicle example in my previous post, the amount is either $3 dollars a day or keeping the mileage log and any none company miles are at .655 cents per mile.
If you gave them the car. Not just to use, but to keep, transferred ownership. Then, the cost to the company would be the cost to acquire the car. That full cost of the car would be the taxable benefit. At least in years employees got new cars.
In this case, the District gave employees a pass. I've been assuming they bought a pass and then transferred that to the employee. In that model, the cost of the pass would be the taxable benefit. If instead, Disney billed them as it was used, so the cost was directly usage based, then the taxable benefit would also be usage based.
Assuming this is a taxable benefit, which does seem to be the current case.
If the employee derives more value out of the pass than that cost, it's a good deal for them and even if taxed would be tax advantageous.