Costa Coffee review: Car park

Hello,
Being a very loyal and regulat Costa client I'm afraid to report that I have been scammed by a car park outside Costa in Basingstoke St Michael's retail park. One assumes these out-of-town car parks have a standard time limit of 2 hours, and it appears this site does - except for the bit right next to the shop, which, as it turns, not indicated on the entrance, is 30 minutes. This is not made obvious when you park there, not was any warning given by any member of staff or at least a warning on the door would have been nice. I'd never been there before as I am new to working in Basingstoke. I was shocked to get a parking notice through as it turns out the area next to the shop does indeed have a different time limit to the rest of the slots in the same retail park. I asked colleagues at work and they confirmed it is notorious among locals, not just the 30 minute scam, but apparently when it was being built it was going to be a toddlers' play area but the company pulled out of the idea, so it turns out the locals are angry on two fronts.
As for me, I vote with my feet. I don't want to, but I have no option now but to 'fine' Costa ten times the amount of my own fine: 40 times 10 comes to £400 pounds, which for me is about 3 months of visits being a solid customer. I was going to start coming back in the autumn after your fine has been "paid" but the danger for companies like Costa who authorise these abusive practices is that those who vote with their feet start to get a taste for the rival companies. I always preferred Costa but I'm getting used to the taste of Caffe Nero now. I don't want to take my custom away from Costa but I need to recoup my money somehow. Costa should do the honourable thing - change the car park by the shop into a disabled-only area; that would make sense, and clearly mark it so, and if not, then a sign should be put up *on the entrance* to this area to make it obvious.