Can I order products from Costco Clovis and just pick them up in my car?

Not an option

I would Call and ask

I've never tried, nor seen it. Since you can't see the stuff they have in a warehouse online I don't know how it could be done.

I'm with Michael on this one, I've seen it done however it's been some time and it was a different location

Yes you can.

I'm not sure if this Costco en clovis has curbside pick up but I have seen it done at other costco's.