How did she get out of the garage?Or it was just an open garage.Oh I DO hope she comes back so you can take care of her.If she only knew that...she'd surly come back for sure(knowing she was going to the doctors).
When I was living in Massachusetts I got home from grocery shopping,pulled into my driveway and I noticed a VERY dirty blackish with somewhite/looked grey then in my back yard.She or he quickly ran away before I could even take a step.My car pulling in must of scared it.I think of that poor cat so much.I would of taken it in and helped it.It was theee most dirties cat I've ever seen.Like coming out of a mine.I don't know why I dwell on these things but I do.
I hope she or he returns to your home.It would be that cats only chance.Your such a sweet person.
I'll be praying and wishing all day.Please keep us posted.