An article from CNET tells of a company from Tennessee that is installing WiFi systems in over 200 truck stops.

IdleAire Technologies is a service company that provides a cab service unit that allows truck drivers to have HVAC, power, and internet services without leaving their engines running.

Since they have to install the units at the truck stops anyway, and since they need the network connection to provide internet services (and back-haul for their credit-card acceptance and billing machines), they figured they'd augment the system and make a bit more money by providing Internet access over 802.11b.

Pricing will be $1.5/hr, $3/day, or $25/month with unlimited use.