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An auto parts store or Ace Hardware should stock fuses.

They should, but they weren't auto fuses, and Ace Hardware didn't sell them either. They were really small and specific to small electronics ( in this case a Honeywell desk fan that had a fuse in the plug ) Fry's would have had them, but Fry's is no more, and there isn't any other store like that anymore.

There's always DigiKey if you need something like that, which also happens to have a parametric search that's actually useful.

For your example, from the fuses search page (https://www.digikey.com/en/products/filter/fuses/139) you can apply the 2.5A, fuse type "Cartridge, Glass", mounting type "Holder" and still have a wide variety of options starting at $0.25 per fuse. No free shipping though.

But fast delivery on par with or better than Amazon in most cases.

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