Drive on flat outside dually tire to repair shop?

I've done this twice and had to drive about 30+ miles to find tire repair shop to replace one outer tire one time and the inner tire another time. As trucker mentioned, just drove about 40-45 mph with flasher on and everything was fine. Now I keep a torque wrench, jack and lug wrench to do it myself if at all possible and in a safe parking lot or similar. Taken a wheel off in the driveway to inspect brakes/axle and feel pretty confident a tire change is an option. Good luck!