OP is just interested in whether she will be in trouble for this, not the rights and wrongs of it. The fact she lives miles away means she probably will get away with it.....which is what is important to her, not whether it was morally right to do it.
We all know that if you have poor service and food, you don't just leave bit discuss the issue and negotiate a reduction or zero bill - it is not for the customer to just exit. Those who dine and run have often planned to do it beforehand - knowingly having insufficient funds for any or all of the meal. They make a bit of a fuss about spurious things, exaggerating the wait time or food quality issue but still manage to eat most of it, before exiting in either a high and mighty way making a scene, or running away. It's hard to know if they delude themselves that they are justified in their actions or honestly know that they have quite simply stolen.
The thing with extreme CFery is that often people feel justified in their behaviour and by repeating their justification multiple times,mcomes to fully believe it themselves and reduce any shred of doubt that lies in their own minds.
Of course, if Op knew she were categorically in the right, she would have no worries about the owners shaming her, telling the police or finding her....because she would know she was fully justified in her actions and had carried them out correctly. She clearly knows she is in the wrong and to be honest, this thread is a bit of a boasting thread - Look how clever I am to avoid paying for my meal and Look how clever I am to irritate all those pious Mumnsetters and show I don't care about social norms and can do whatever I want.
I tend to feel a bit sorry for people who either genuinely feel entitled to carry out this kind of behaviour, or who get a kick out of annoying other people by disregarding social norms and feeling clever about it - their lives don't sound very successful or satisfying and you also wonder exactly what kind of future children in that kind of situation have in front of them.....but then those children are probably already becoming the nightmares in school and in a cycle for a similar adult life. These adults like to boast about scamming the system, but if that's the most you've got to boast about, it doesn't say a great deal really.