It wouldn’t be. All they’d have to do is disrupt the 4g network in their privately owned store which is as legal as if I decided to put a 4g jammer in my bedroom.

Xfinity is the way to go if you have a wifi only device. Every xfinity router has a secondary hotspot network running alongside the private one the customer uses. Any xfinity customer can tap in to those hotspots.

Not if it’s on the store’s wifi. The network is the company’s, not yours, so they can direct traffic over the dns in whatever way they please.

Thank you for actually understanding how nutrition works before writing about it!