Chances are higher that she would have shown up if you stood your ground. But then again... you never know what's gonna happen in the magical land of entitled attention who_res
Maybe, but on the other hand being picky about the location shows low interest from the start. Whilst standing your ground might raise interest sometimes, it also works by filtering out the bull****tters.
I can give an example - a girl I agreed to meet once at a specific location on the beach was trying to insist that I walk down to the other end near the marina rather than where we'd agreed. I didn't have time for that and I didn't feel like walking that far so I told her no. She ended up coming to where I said, but she didn't want to sit at the McDonalds (fair enough, I thought) and we went to a place just across the road from there.
I already was suspicious of her intentions so I watched the menu like a hawk and when she tried to order food, I vetoed it and said I just had just brought enough cash for a coffee. Now here's where she could have said "It's ok, I'll pay for my own food" if she had good intentions but of course she didn't want to eat if she had to pay and so she just ordered a coffee. Later she suggested ordering wine and again I told her no and I said I had to leave.
I could give a lot of other examples, all basically the same. Women that are genuinely interested are compliant and will generally be happy with whatever you suggest. Those that insist on some pre-determined plan tend to be low-interest or up to no good.