FBI paid 'cooperating human sources' in Best Buy's Geek Squad up to $500.
'The employees in this store saw an opportunity to make a child smile,' a Best Buy store manager said.
Microsoft is offering free GTA 5 with Xbox One bundles till 19 March.
Game available at Rockstar Warehouse, Sony Playstation online store, Amazon, Target, Best Buy and Walmart.
The major retailers were fully prepared for the event, offering deep discounts across the board.
US retail giant would offer the first 100 customers a free "tech gift".
Stores primed for closure represent 1% of US retailer's annual sales of $28.1bn.
Apple Watch currently available at 0.3% of the number of locations globally compared to the iPhone.
Best Buy's deal offers savings of up to $198.99 on the Samsung Galaxy S5 and is valid until 28 March 2015.
Best Buy announces first wave of monster US tech deals ahead of Black Friday.
Guide to the best UK and US Black Friday deals for tablets from Samsung, Microsoft, Amazon and more
Find the best Black Friday deals for everything Apple - from the iPhone 6 to the iPad Air 2.
Asus Zenwatch running Google's Android Wear platform will have a price tag of just $199 in US.
Ahead of launch, Motorola's hotly-anticipated Moto 360 smartwatch is listed online revealing all details
Best Buy is planning to focus on US market by scaling back from its European operations.
