Along with the other comments, don’t wait too long.
I had that happen once as well.
Take the seats out so you can remove the interior and let that dry separately and vac the water off the floorboards and padding best you can. Then let that dry out. I used ran an extension cord to a portable dehumidifier that we commonly use here to lower the basement’s humidity.
This is a bit unconventional but to make sure it was all dry, I also spread a large bag of rice on the floor to dry it all out. Rice being a natural desiccant, it will quickly dry whatever it will gets in contact with. Just vacuum that up quickly because it will make an unholy mess if you leave it for any appreciable time.
… that, and don’t eat it. Not that I’ve tried that but no doubt it will not taste right afterwards. Perhaps save it for the next time you attend a wedding or something like that.