Found Cat - Convict Hill & Escarpment. No chip, no collar, friendly, uses litter box

We found her stuck in an engine cavity in the car. We were loading up when we heard the meowing. Took her to the firehouse to get scanned but she isn't chipped. She is very friendly to humans, used the litter box without issue. My wife and I aren't cat people so we're eager to get this thing out of our home.