Originally Posted by
Vanguard-01
Well, first, that could be attributable to his being so unbalanced at that point. The guy was flirting with insanity. It's possible he just wasn't thinking very clearly then. It's possible he was actually getting sloppy.
Another explanation could be that he intended for the truck to get away the whole time. He wanted them to think they'd gotten away from him so he could try to take it later.
Option 3? Let's not forget that the only reason the truck got away from him was due to Superman's unexpected intervention. It's possible he put the tracker on the truck as insurance in case they got away from him, but he always intended to take the truck and the tracker was just a backup.