It is proper Netiquette to know the hotspot rules. Do follow wireless service agreements.
Wireless is the transmission of Internet data without wires in waves that travel through the air. The waves are microwaves for WiFi, short range broadband connections. Cellular telephone towers for Wireless carriers use radio waves primarily.
Wireless was born in 1968 when the Federal Communications Commission set aside spectrum for its use. Mobile Network Operators, carriers, use designated spectrum, waves, to transmit data. There were several key technological advancements that led up to this.
The wireless telegraph system was its first application. Transistors preceded the invention of cellular technology. Microwave technology was implemented into the telephone system in 1950. This around the same time as the communist scare, which makes it quite probable all telecommunications is being reviewed. Providers have rules. Companies have user agreements and so do hotspots.
Hotspot rules are generally more restrictive than wireless carrier or cable company rules. Knowing the hotspot rules includes knowing the hours and leaving at least fifteen minutes before closing.
Know establishment rules before using a hotspot to avoid breaking them.