it’s Shabbat, i found a lost cat

i was almost at my bus stop to go to Temple when i found a young cat that i believe to be lost (well-groomed, friendly, no collar), and in an impulse decision i missed my bus to take this cat home so i could put them in a carrier and check if they’re microchipped and try to get them home. i’m still waiting for my bus to the vet now, but i’m wondering about like, the Jewish view of what i should have done here. i know returning lost objects is a mitzvah. but it’s Shabbat, in the holiday season no less, and i’m missing Temple to try and return this cat. should i have ignored the cat and gone to Temple anyway? does this change because the lost object i found is a living animal, and not a wallet or phone? thanks!!