[Your address and full contact details]
[Issuing authority address]
To whom it may concern,
I am contesting Citation [Number] I received on [Date] at [Time], which states my car was parked at or near [Location]. I am writing to formally challenge this ticket for the following reasons.
According to [Law you allegedly violated, Copy paste law here]. However, in my situation [explain the technicality or extenuating circumstance].
To provide evidence in my favor I have attached [evidence: photograph; witness statement; etc.] to this statement.
For the aforementioned reasons, I am requesting my ticket be dismissed.
Regards,
[Your name and signature]