Good on you for getting after the puncture vine/goatheads. It's about the only thing I use spray on where I live. Like you............I HATE THAT STUFF. I go around barefoot or in sandals alot, not a good thing around goatheads.
I haven't seen it yet on our place in Cali, I know it's in the area though, have seen it in town.
We found out about a new to us weed there this spring though, burr buttercup. It grows in the gravelly part of our yard. It's not fun for running around barefoot either.
https://duckduckgo.com/?q=burr+buttercup+picture&t=ffsb&ia=imagesHave you folks ever dealt with it? I'm thinking about going after it early in the spring with my weed burner as we have other plants/flowers there that won't allow broadcast spraying with an herbicide. If it takes me a few years to get it all out (we're surrounded by wildlands so I think I might be fighting for a while) well, I'm retiring so I'll just have a spring project to go on the whiteboard.
Geno