But once it's fixed, I'm definitely takin' my new van there
Can you read that? If not, is this better?
You couldn't just say "The carwash is closed"? Or perhaps "Closed for maintenance"? Oh heck, no. That kind of thing isn't detailed enough. Carwash signage just isn't complete without providing sufficient detail surrounding the potential "fiery explosions". 'Cause that oughta really help drum up business down the road.