Well I done fucked up
Received 2 orders last night from Panda at around 10:30 and 10:45, Google and their website both say they closed at 10pm. I mark them as closed and get a notification saying both orders are under manual review. Apparently they changed their hours to 11pm. Dinged my account for the first time in 4 years, luckily I didn't get deactivated but was stressing tf out last night.
How to disable the endless pings on Android (Samsung) when you get a new order
Haven't seen anyone else mention this solution so I thought I'd share.
Settings -> notifications -> app notifications -> Dasher -> notification categories -> check OFF "New Order".
You'll still get a notification sound for new orders, but they won't go on forever!