It's not OK to walk your dog down the aisles and let it pee and poop wherever they want. It's gross and very rude. Even if you are one of the few who pick it up, there is residue and stink until the next rainstorm.
Parks have dog runs for a reason. Carry your little pooch down there to do his business if he can't make it.
People pay good money for their sites and you should respect that they may not appreciate it.
I have a dog and understand how they can be - sometimes they don't like to cooperate. I take him to the pet area and do not wander around the park with him. If you let your dog pee on everything in sight, then every dog thereafter is compelled to pee in the same spot - especially the male dogs - it drives then crazy.
I really don't appreciate trying to hook up my rv and every post, fixture, etc has been peed on. You can't sit in the grass, and you can't sit by a tree in ANY RV park.
All this is wasted keystokes I guess.
