I was reading the script and i read this:
We didn’t see him but during Jesse’s confrontation with the Bulletheads, Walt was parked nearby, watching from the darkness. Getting involved wasn’t a calculated move -- if he’d had time to think about it maybe he wouldn’t have done it at all.
But when he saw Jesse walking into a gun fight, Walt’s instincts took over.
I thought he drived over the dealers as fast as he could, Anybody thought the same? Am I stupid?