Unfortunately, running red lights is a big problem in most of Kahleeforneeya, and many cities have gone to the red-light cameras as a means of enforcement. If a cop catches you running a red light, the MINIMUM fine is $271, but with the cameras, the fine is $361. PERIOD. Yes, if they can't PROVE it was you driving the car, you MAY be able to beat it, but in a rental car linked to your name, you may have a tough time beating that, since MOST rental contracts have limitations on who can drive that car. Your profile shows you being from Va...the fine there may be much lower, but...this is Kahleeforneeya, and many fines here are much higher than other states, because we have so many asshats who are just too ****** important to obey our laws...native or not...being from out of state, it will be difficult to contest the ticket, (unless you want to come back to San Diego for court) but you MAY be able to contest it by declaration. THAT will have to be set up with the clerk of the court's office, and MIGHT be able to be done over the phone. If all you have to contest is the amount of the fine...you're just whining, and will have to pay up, but IF the photo doesn't show clearly that it's you driving, you MAY be able to beat the ticket...
Like it or not, you ADMITTED that you ran the red light, so even if the fine were $1000., you're guilty...so pay up...
BTW, as already mentioned, the local governments only get a pittance from these fines, so it's NOT a revenue source for them...most of it goes to the company who owns, installs and maintains the cameras.