<human>: On the street in LA where I live there are a few blocks of 4 hour parking from 8am to 6pm. This morning I got up and dropped someone off a couple blocks away at 11:30 in the morning. I then returned at parked around 5 minutes later on the same side of the street but a block up. I was issued a parking ticket at 1:52. Clearly not 4 hours after I parked there. 

I don't think my tires were marked, or if they were I can't see it. So I'm not sure how they thought I was there over 4 hours...

Meanwhile my roommate forgot to move her car and didn't get a ticket on the same street.

How do I fight this?

Summarize the given text in a few sentences.
<bot>: I got a parking ticket in LA for parking somewhere for over 4 hours though I had only been parked in the spot for 2.5 hours. How do I fight it?