The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.
There isn't any other situation that you can think of that would put you at risk for HIV. HIV does not infect via minor cuts and scrapes. HIV needs to enter the bloodstream, and that DOES NOT happen small amounts of blood. The only risks involving wounds would occur when both parties are injured so severely that they require immediate medical attention at a hospital to stop the bleeding.
You had zero risk for HIV and should move on.