I've had a similar experience just connecting to my school's Wifi network. Someone left a threatening message on the now dead 'anonymous' chat app(YikYak) using

I've had a similar experience just connecting to my school's Wifi network. Someone left a threatening message on the now dead 'anonymous' chat app(YikYak) using the campus Wifi. Campus PD checked the IP address, saw one of my devices now had that IP, and gave me a call. I spent 5 mins trying to understand what this app was that they were even talking about, and another 10 mins explaining how IP addresses work to them.