This is already about to pass in California. https://legiscan.com/CA/bill/SB478/2023
The FTC is going to write a rule similar to what local governments have given themselves power to regulate. The article gave some examples, but it is not exhaustive.
If the pole is entering the portal at the rate of 60 miles per hour, it must exit the portal at the same rate. After a minute, 1 mile of pole has entered the portal, and 1 mile has exited it. If it exits more slowly than it enters, where is the missing part of the pole?