I'm sorry to hear this too. Checking local pawn shops and Craig's list in the next couple weeks is a good idea.
I have left my "big" b.o.b. in the car too but after reading several threads about stuff being stolen I keep my main one in the house and a smaller, clothes and smaller stuff b.o.b. in the car now.
Question, why so many big(ish) blades in your b.o.b.? I personally only keep one big blade in each, for weight and for having them all around in case I lose one.
but again I'm sorry bro, I hope you get em back and/or they get theirs!