Sorry, I meant to check out a co-op tracking site for any info on a Diamond Bar location....I'm not seeing anything but at least you aren't too far from other spots....I have a minimum 30 mile drive to get to the nearest one to me

I haven't used any delivery services, but what I've read is they generally charge more which is understandable, so I would only use those services if you have a hard time getting around. If I see anything I'll post an update.