People's Court question

I'm watching People's Court.  They just had a case where a dog got another dog pregnant, and the people with the girl dog wanted the cost of placing all the puppies (Which they lost because they got $200 each for the puppies anyways).  Well I was thinking.  (Dangerous I know)

I know that the owner of the male dog is liable if he goes after the female and they tie.  But what if the dogs are in a neutral area (Like bringing a female in season to the park or Petsmart)?  Or if the female comes looking for the male?  I'm just thinking about this because what if I'm walking Nee and a girl in season runs right under his nose?  Boys aren't the only ones who run wild around here (The Joys of no leash laws).  Yes Sanity is going to be fixed (He had an appointment but an emergency came up where that money was no longer available, and with me losing my job, I'm sorry, dog food comes before ball lopping.), and I have NO intent of him fathering a litter whatsoever, but I was just curious if anyone knew anything about this.