Which made it worse than a equipment/gun issue withe the LA cops vs them. These guys not only didn't give a fig, they wanted to go out blazing. Until the end,when the one tried to hijack the car. By the way, I think the LA cops purposefully let the guy bleed to death. Not that I blame them, at all.
They stopped caring due to the fact that the gig was up when they entered the bank. They didn't know it, but LAPD saw them enter the bank, and were waiting.
They new when they exited the bank that their operation went south. In addition, they were already wanted for multiple crimes, including murder, robbery etc. They knew they would never see the light of day again.
That's why it appeared they they wanted to die from the beginning.
Fact is, they didn't.