Emmanuel the African american? Was rude

Emmanuel the African american? Was rude
He ask me to leave after one hour of use the computer,"
I was very quite as usual no problems i had in another library .I ask for supervisor..he Said Im the superviser"
I been here 4 time before more than one hour using th he computer, when another people is around beside him and they never tod me about this policy"
Weird or bad employee alert...