It seems you knew the rules and still done it anyways. Many possibilities to prevent this event. Could've asked your friend to delete the sign.

Ah but we, do not know how your computer was operating at the time. For all we care, you might be lying. 1,5 hours of the computer being locked? I would understand like 5 or less, but 90 minutes? You might want to check that out.

It seems you knew the rules and still done it anyways. Many possibilities to prevent this event. Could've asked your friend to delete the sign. Ah but we, do not know how your computer was operating at the time. For all we care, you might be lying. 1,5 hours of the computer being locked? I would understand like 5 or less, but 90 minutes? You might want to check that out.