When I lived in SF I once cut into my finger with a rusty fish filet knife (don't ask). I went to the bernal hospital ER and they gave me a tetanus shot, but nothing else. A few weeks later I went to my family doc and mentioned this, and he said, "You went to an ER for a tetanus shot?" Me: "Uh, Yeah." Him: "That's like a $1500 tetanus shot."

They didn't have urgent care back then, but I understand there were "clinics" that could give those shots.