the answer is NO
two reason why:
hiv is not transmitted through animate objects. once exposed to air, it becomes inactive and unable to infect.
"As soon as I returned to my car I noticed my fingers had cuts on them none of which were bleeding."
you had NO risk
No risk.
HIV is unable to reproduce outside its living host (unlike many bacteria or fungi, which may do so under suitable conditions), except under laboratory conditions; therefore, it does not spread or maintain infectiousness outside its host.
HIV is transmitted by;
Unprotected penetrative anal and/or vaginal sex
Sharing works with other IV drug abusers
Mother to child