Im so 
Please help me
So I have a friend that I've given a lot of lifts to recently few weeks ago long distance and she didn't offer me any petrol and I didn't mind at first I till she begged me to drive her to London and back
I said no at first cz I hat driving in London bt she begged until I just couldn't say no!
As I was taking her she tld me she'd show me the quickest way as my tomtom was taking us a longer route and she was worried she'd miss her appt. we reached near and she asked me to park on a road that cost £4 for non residents an hour and I told her id park else where bt she insisted as her phone was dead and I left mine and she was worried she wouldn't find me etc, I didn't see any other sign and took her back after her making me wait for 3 hrs for her and she have me only £10 for my petrol didn't pay for the parking at all. So on Friday I opened a letter informing me that I shouldn't have even gone on that road she insisted on as it was only for residents or people with badges unless it's after 6pm till 7 am !
I didn't see that sign and now I'm faced with a bloody fine and I feel as though she should pay it!! But I'm I wrong in asking her as I'm the driver and etc
I hate driving in London and I didn't want to go I spent money bcz of her an now again!! And that £10 didn't cover the distance we even drove!!
I just feel some type of way and I want to know if I'm wrong before confronting her about this!
Feel guilty to think of asking her bt I feel lyk it's the least she could do as I'm always doing her plenty of favours