"Unless specifically permitted by league rules, the use of cellular phones, smart phones, tablet devices, computers, wearable electronic devices such as Google Glass, and other electronic equipment by coaches, players, and other club personnel is prohibited in club-controlled areas including, but not limited to, sidelines and coaches' booths.
"These restrictions apply from ninety (90) minutes prior to kickoff through the end of the game, including halftime. Coaches, players, and other team personnel are permitted to use such electronic devices in the locker room prior to kickoff and are permitted to use league-issued Microsoft Surface tablets throughout game day for viewing coaches' still photos."