Although Miss Hudson has won her case, she said it had caused a huge amount of stress over the past 21 months.
"I struggle daily with getting anxious and worried about things," she said.
"This heightened it, so this made me feel 10 times worse. It's that dread of waking up in the morning and seeing another letter.
"It's not nice having that hang over you, I wouldn't wish it on anybody and I certainly hope that the rules change so that this doesn't happen again."
Miss Hudson would ultimately like the five-minute payment rule to be "banished" and for private car park operators to follow stricter rules, and she hopes to meet Catherine Atkinson, the Derby North Labour MP who raised the matter in the House of Commons.
But in the meantime, Miss Hudson feels she can finally continue with her life as normal.
"I can use that money towards a deposit for a house I'm looking at buying with my partner," she said.
"We're getting married in February next year, so I feel like that money will go towards our future."