It comes back ta the question:
"What opinion would my God take of this nonsense?"
Law is not necessarily a mortal truth in fantasy. In RL sure we live by a code of laws dictated to us by the government be it a just government or a brutal dictatorship, either way, the only law we can be forcibly bound to is mortal law. (yeah, yeah, the catholic church likes ta hand down the law too, but it don't put you in jail, just threatens ya wit eternal damnation)
In a fantasy realm on the other hand, (fancy that, the paldin being a fantasy type character an all) the law is handed down by the gods as well as by the mortals. Now let me pose this question to you:
If a paladin changes how he acts on a city by city basis, would this not be a form of chaotic behavior?
ex:in one city bribery is a serious crime punishable by imprisonment, the paladin turns in individuals who attempt to bribe him,
in another city no service of any kind is offered unless an appropriate payment is made and in fact is required by law. Would the paladin then acting well within the law of the city be acting correctly if he too engaged in the same act (a lawful act) that he jailed someone for earlier?
A paladin is not a leaf blowing in the wind, it is not the reed that bends to the storm but the mighty oak that stands firm against it. Sometimes that oak breaks under the winds that the reeds survive, but the oak endures the winter, the darkness, the animals grazing. The paladin is the light in the darkness, the bastion of truth amidst the lies, the unwavering, and the law he/she follows is that of his/her god (or in the case of paladins who simply serve the cause of good itself, the code of conduct preaproved by the Dm before the character entered the game)
(okay okay, the god lovin' pals have a code too)
In summary the paladin follows THE LAW, not the law (oft times in civilized society both coincide, but their ain't a question which ta follow when the chips are down)
-Immort