I haven't lived here too long, so I don't know too much about the parks. We've been to the William R. Davie dog park on Pineville-Matthews Road a few times. It's pretty big, and just about every dog/owner we've met there has been really nice.
If you want to try to set something up, send me a PM and we can try and figure out a time/place. We're generally free Sat-Mon, and some early mornings or late afternoons.
Hailing from muggy New Orleans, Louisiana!
Enjoying a nice early Friday morning on my garden sanctuary deck with our new puppy, Marduk, before it gets to oppressively hot and the air starts boiling! :P