Keg dispensing question

Hello I kegged my hefe about 3 days ago and set it to 12 pounds of co2 pressure to carb for 1 week. I went ahead and tapped it after 3 days with my picnic style dispenser to get a sneak peak at what it was going to taste like. I can tell that the edwort hefe is going to be great even though it wasn't quite carbed yet. My question is now that i have tapped the keg with this plastic push button dispenser while still carbing at 12 pounds is there a possiblility of loosing pressure through the dispenser that is so important to get my carbonation right? thanks also here is the link to the picnic dispenser Austin Homebrew Supply

Nope, you're fine. I use a picnic tap all the time and just leave it hooked up to my keg at 12 psi.

awesome thanks