Polymer additives aren't always needed for concrete cracks. Many splits are just surface level and won't cause real damage. It's easy to panic and overspend on fixes.

Seen it happen twice in Bristol County where a volunteer clean-up crew accidentally messed up the site before anyone official could see it. That good intention can legally backfire if the original state isn't recorded first... it becomes a "he said, she said" about how bad it really was. You might create a liability issue instead of helping. So yeah, document first, then maybe don't touch anything until you talk to a lawyer.