Parking

How do I dispute a parking ticket in Oregon?
I am an Oregon resident and while in notheren Cali at Cresent City look out I parked in a spot that was a handicapped space. I did not see the painted sign on the ground. The ticket that was written states it was a sign posted stall which it was not, there was no actual posted handicapped stalls in the parking lot . The parking officer spoke to some people that were standing around before issuing a ticket but did not speak to me. Their were other cars that were double parked (both were suv) that were not ticketed, both cars were next to mine forcing me into half of the handicapped space & the car that was written on the citation does not match my vehicle, the vin number is correct but the body style & color is incorrect, my vehicle is a green sport coupe, the veicle the citation is made out to is a grey 4 door make. Is this citation written as a sworn statment under oath? The bottom of notice states 'I certify under penalty of perjury that the foregoing is true' etc. Does this therefore make the body style & make being wrong an act of perjury. Due to the officer getting out of his vehicle as well as not ticketing any other car at that time, does this action constitute a discriminatory action? I have sent the Cali St Parks my protest and they have sent me back an indigent form for me to complete requesting a formal hearing what does this mean?
What can I do legally to have them park at least one of their vehicles out in the street area?
I rent two units. Unit one has two bedrooms, Unit two has one bedroom. Unit 1 wants to park 2 large vans and a medium car next to their unit, unit 2 wants to park 1 large van and a medium car next to his unit which causes unit 1 to have to squeeze their vans and cars into the fenced in yard. This is causing many problems. What can I do legally to have them park at least one of their vehicles out in the street area? Is their a rule for parking in such a confined area?
Is it illegal to park in a expectant mother parking if you are not pregnant?
Is their a law against parking in handicap spots for expectant mothers if you are not pregnant, but disabled with a handicap sticker?
On a public road with no parking signs is it legal to wait to pick up a child while car is running?
On a public road with no parking signs, is it legal to wait to pick up a child on the street while the car is running?
Is there a legal sign and pavement marking that indicates whether or not it is handicapp parking?
I received a Handicapp Ticket for parking in a Handicapp Spot on private property at the apartments I live at. The apartments did not complain nor did they authorize the officer to write the ticket. The ticket was left on my vehicle. The spot where I was parked was not marked with any yellow paint indicated it was handicapp nor was there a blue and white sign with a handicapp wheelchair picture posted. The only sign posted was a sign that was hand made by the apartments and was painted in burgundy and creme and had a wheelchair on it and only said Reserved. Is there a legal sign and pavement marking that indicates whether or not it is handicapp parking?