No. For a muni, calling an ambulance is not wrong if an accident happens in front of them.

In Jain Dharma, the main principle is Ahimsa — to reduce harm as much as possible. If someone is injured, helping to get medical aid is a form of compassion and protection of life, not violence. A muni may avoid direct involvement that causes further harm, but arranging help, alerting others, or calling an ambulance is generally consistent with dayā and ahiṃsā.

About the thought, “Tirthankar would not have done this, so we should also not do it”:

• A Tirthankar’s conduct is the highest spiritual ideal.
• But we should also understand the situation, role, and duty of a muni or a householder.
• Not every external action is copied literally; the inner principle is what matters.
• Saving a life or reducing suffering does not go against Jain ethics.

So, in a real emergency:

• Calling an ambulance is appropriate
• Trying to reduce harm is appropriate
• Ignoring the injured person is not the Jain way

In simple words: Helping to save life is not adharma; it is aligned with compassion and ahiṃsā.