Power Door Lock Issue

I have a double cab 2013 Trd sport. Today on my lunch break I got out of my truck and pressed the lock button on my remote and the truck locked but the beep was very faint so I tried to unlock it. The lights would flash but the doors didn't unlock and it didn't beep. I checked the door lock fuse and sure enough it was blown. I don't happen to have a spare 20 amp fuse so I'll have to go buy one after work. I'm not sure what would cause that fuse to blow. Do you think this is something I should take it to the dealer to have looked at under warranty or should I just pop a new fuse in and call it done? My only hesitation about taking it to the dealer is that I use my truck to commute to work everyday and if they're only going to change the fuse I'd rather not deal with the hassle of taking it there and being without my truck.