If I understand your question, abusing Hatzolah would be calling them for what you know to be a non-emergency. Calling them for what you thought might be an emergency, but turned out not to be, is not abusing it.
If I understand your question, abusing Hatzolah would be calling them for what you know to be a non-emergency. Calling them for what you thought might be an emergency, but turned out not to be, is not abusing it.