Broken bolt

I broke the bolt that holds down my choke thermostat, I was thinking to take my exhaust manifold to a shop and have them extract the bolt. When i go to take off the exhaust manifold will other bolts break and would i be better just taking the whole car to the shop?
If it is just the choke thermostat and the other bolt threads are good, I would just use the single bolt to hold the choke thermostat housing in place until there was a need to remove the complete intake / exhaust manifold assembly and do the repair then.