Ever been through Gilroy? I have and the aroma of garlic is very strong. More at certain times than others. To some people it may be offensive. Like to a vampire.
That's it! The perp is a vampire who went berserk over the smell of garlic!!
The family and I drove through Gilroy once and tried some garlic ice cream. It was exactly as advertised. Glad I tried it, don’t ever plan to eat it again.