Is there a service that can send someone to physically inspect a vehicle for me before the auction closes?

Yes, independent third-party vehicle inspection services exist specifically for this purpose, and many specialize in auction and salvage vehicles. They'll typically provide a written report and photos covering mechanical condition, frame integrity, and any damage not visible in the listing photos, usually within a day or two of booking — useful if you're bidding from out of state or simply want a second opinion before committing.