Unlikely, Megatron burned up (and as a combination Transformer/shitty spring-loaded airsoft gun, was all bark, no bite), if Bob really had the deer rifle and revolver, they are probably burned with whatever's left rusting rapidly, he doesn't know shit nor Shinola of gun shows and the black market for firearms, he would blow himself up trying to make bombs, and he himself is all bark and no bite. We do not have a second coming of James Huberty, George Hennard, Billy Ferry, Michael Ryan, John Alan Muhammad or Ira Attebury, since he is too much of a pussy and his only targets would be Snyder, Mimms, MLW, Tiffany Gowen or Sarah Bevel, who are all making themselves harder for OPL to find. And regardless of whether he used the Caddy, the van or (if it didn't burn up) the BMW, as a getaway car, between vanity plates and execrable mechanical condition, a car chase would end poorly.
At most we can see him going to the joint by using one of

's kitchen knives in a retarded attempt to end Snyder or Sarah Bevel.