Hopefully no one from NRS or WB are reading this. It's very much against the law to break street date. If they choose to do so (and I wouldn't put it past WB), they could have these stores shut down and possibly worse. Personally, I'd love to get the game early, but if I had any kind of personal connection to someone working at the store, I'd suggest they not break street date. Look at the crazy marketing WB has been doing for this game. Since they've been hyping the 4/19 date for so long, if a store goes against policy and releases it before midnight on 4/19, I wouldn't be surprised to see some sort of punishment handed down.
All that being said...... good luck.