How to Fight a Parking Ticket in Aspen, CO

The no-parking sign was absent, missing from the block, obstructed by a tree or another sign, or so faded as to be illegible at the time of the violation.

Legal basis:

A motorist cannot be held responsible for violating a regulation that was not properly posted. Signage must be installed and maintained according to the Manual on Uniform Traffic Control Devices (MUTCD).

Required evidence:

• Photograph of the sign (or lack thereof) taken on or near the violation date
• Wide-angle photo showing the full block face
• Timestamp metadata from the photo

The parking meter was visibly broken, displayed an error, accepted payment but failed to register it, or was not functioning at the time the vehicle was parked.

Legal basis:

Vehicle operators are not required to seek alternative parking when a meter malfunctions. The city bears responsibility for maintaining meter equipment.

Required evidence:

• Photograph of the meter display showing the error or malfunction
• Receipt or bank statement showing payment attempt if applicable
• Timestamp from the photograph

Two or more signs on the block face or pole provided contradictory parking rules, making it impossible to determine the lawful parking restriction.

Legal basis:

Contradictory signs create an ambiguity that must be resolved in the motorist's favor. Enforcement cannot stand when the regulation is unclear.

Required evidence:

• Photograph clearly showing both conflicting signs in the same frame
• Photograph showing the distance between the signs

The ticket contains a material error in the vehicle description — wrong license plate number, incorrect state, wrong vehicle make, model, or color.

Legal basis:

A ticket with a materially incorrect vehicle description is legally defective. The issuing officer must accurately identify the vehicle for the citation to be valid.

Required evidence:

• Copy of vehicle registration showing correct plate and description
• Photograph of the vehicle's actual license plate

The vehicle was parked in violation because of an unforeseen medical emergency affecting the driver or a passenger that required immediate attention.

Legal basis:

Most municipal codes recognize medical necessity as an affirmative defense to a parking violation. The emergency must be genuine and documented.

Required evidence:

• Hospital or emergency room discharge paperwork showing date and time
• Doctor's note or urgent care visit documentation
• Any emergency services record

The parking restriction was not properly posted under CRS § 42-4-111 or local ordinance, or the penalty assessment notice omitted required information under CRS § 42-4-1707.

Legal basis:

CRS § 42-4-111 requires official traffic control devices conforming to the MUTCD before parking restrictions are enforceable. CRS § 42-4-1707 specifies required content for penalty assessment notices; defects may support dismissal.

Required evidence:

• Photograph of the sign or its absence at the cited location
• Copy of the citation showing missing or defective required fields

Aspen's downtown paid parking zones rely on pay stations and mobile payment apps. If the pay station was out of service, the app failed to process a valid transaction, or payment confirmation was not received despite the driver's attempt, challenge the citation on grounds of system failure.

Legal basis:

A driver who makes a good-faith payment attempt and receives no confirmation due to a system failure cannot be held liable for the resulting unpaid meter. The City bears responsibility for maintaining functional payment infrastructure.

Required evidence:

• Screenshot or record of the mobile payment app showing a failed or pending transaction
• Photograph of the pay station showing an out-of-service indicator
• Credit card or bank statement showing an attempted charge
• Timestamp of the payment attempt