Other mistake: During the close-up of Jay's Mega Ball's receipts (just after he got the phone from the manager of his franchise), you can see the two receipts have different numbers but the exact same transaction details. (00:21:25)
Other mistake: The window looks closed, but even if the window is open, the woman ironing in her house across the parking lot would not be able to hear Jay and Maggie's argument from that distance, only muffled voices at best. (00:05:18 - 00:06:11)