A better response to the dispatcher was that after describing the attackers, she should claim that they have guns “and I already shot at two of them, though I don’t know if I hit them!”
This would push several hot buttons and likely get a faster response. Plus the police would arrive with an attitude, so if any of the vermin resisted, they might very well get shot.
i can see saying that she was shot at... but to say she shot at them could put her in a dangerous situation with the officers... especially these days...