That is correct hep c infected blood has to enter the blood stream. Hep c is not easily contracted.
However, there are no medical practitioners here. This is primarily a support community for those who are currently or were previously infected with hepatitis C. We are all lay persons and cannot diagnose any medical condition or recommend any course of treatment only relate our own personal experiences.
What knowledge I have was gained by being infected with hep c for 37 years and self education.
For an expert medical opinion you should always speak with a medical professional like your doctor.
If you have concerns wait 12 weeks after a concerning event and get tested for Hepatitis c antibodies.
But I sincerely doubt what you have described is a risk.