Dishonesty meanness

People that know me may consider me mean but i like value for money, a good deal, not stealing . So today at Bowlees Visitor centre the car park was "free" they asked for donations. £2suggested but it was a car park in the national park, toilets, picnic area, walks and a visitor Centre. Some folk parked, looked at the car park charges muttering I'm not paying and walked off!  not paying its disgusting . surely they could afford something, £1 is not too much for the facilities. Otherwise its just plain mean if not dishonest. How Will these places survive?