The deputy makes an arrest apparently for DUI based on non-existent erratic driving and some prescription pill bottles in the car. He administered no field sobriety tests, and she was not visibly impaired, so he had no legal cause to arrest her. This would result in severe liability against him and the sheriff.
The daughter Riley runs into her mom's bedroom asking "What's that?!" only one second after the loud noise started - way too soon for her to have heard it, jumped out of her seat or bed in her bedroom, and run to her mom's room.
Mandy is shown to be successful blogger. Anyone that has written a blog knows the risk of not screening comments- such as harmful links. An experienced blogger would set her blog to require anonymous comments such as the one linking her daughter's supposed blog to be pre-approved. As such, that comment would never have appeared and she would not have lost the sponsor.