Smoke and non working seatbelts

yesterday my hubby was driving his 93 ls and all of a sudden smelled a burning smell then he could see smoke coming from under the dash when he stopped teh car. he also noticed that when he opened the door, neither seatbelt worked. they stayed in the position they are in when the door is closed.

any idea on wtf the problem is? we hope to take it to acura and it be a problem with seatbelts and it will be fixed under warranty. however that will be a week or more since the closest acura dealer is over an hour away.