They wont need to add cookies or anything like that. They can track you just by parsing the connection logs on their routers and switches. Also every thing that

They wont need to add cookies or anything like that. They can track you just by parsing the connection logs on their routers and switches. Also every thing that is billable is logged. So technically they are already tracking and recording every access across their network. It is impossible to verify if they actually do this without anyone leaking information that worked on the system.