Critic, since you live iin CA as well, I'm sure you're aware of the CA law that requires shops to check & adjust tire pressure no matter what service is being performed.
Most indy shops I know of take this approach, if a customer comes in and says I want my 2 radiator hoses replaced. That's all you're going to get, labor for 2 radiator hoses and more than likely, your old antifreeze put back in and then topped off with a little extra if needed. AND a tire pressure check.
If you go in and say, I have antifreeze on the ground, now you pay for diagnosis, the hose that's bad, you'd get a recommendation for the other and you'd get hit up for a flush because "most of the antifreeze is going to be out of the car anyway!". AND you get a quickie inspection, PLUS tire pressure check.
I've run into some shops asking people if they want their tire pressure checked.
I had that asked at the dealership and I said don't touch the tires. was much easier than having to readjust the pressure after I got home. Because what's on the door, isn't what goes in my tires.
A lot of this isn't because a shop isn't trying to be helpful or look for more business, it's california, the sue happy state.
it's all about liability.
If a shop was doing the 2 hoses, and saw a vacuum hose ready to fall off, they'd let it fall off. Because that's how it came in.
Although the customers always pull the line, "it worked before YOU worked on my car".
A dealership will usually call and unload what's wrong tell the customer it can be fixed NOW and this is what it'll cost and they usually use the scare tactics to boot. They're on commission too.. it's their job.
an indy shop, the ones around me would just write it on the invoice so the customer has acknowledged it, by signing the invoice, with the problem on it, there's little to no backlash.
If it's pretty severe, you'll get a call.
A lot depends on the shop though and how well they know their customers.