No but that’s a bad comparison because Costco is subject to price pressures due to competition. If they raise their prices too much you’ll go elsewhere. If you privatize a road, there are huge obstacles to competition. That leads to rent seeking - and ultimately higher prices. This is pretty basic economics but happy to walk you through it.
There are many alternatives to interstate car travel.
the monopoly issue is a red herring.
Profit is not evil. Capitalism is good.
The free market is always superior to socialism