do you believe that squirrels are natures little speed bumps???
Boxes of Baking Soda is simple and quick. Just open and throw on or splash it on. Or turn off the main breaker and throw water on it. Of course a quick throw of water in a bucket might help, but do not keep a flow of water on it. But, get a few large ABC fire extinguishers just because.
Well fire alarms are tend to go off only when it detects fire, as you are saying that every time you pass by it it went off, so there might be some problem with the sensors in it. Get it checked by the professionals.
Unlikely. But you will ROYALLY screw up the car.
Depnds on the size and shape of the bump. I think mythbusters did this one. drive really fast over a small bump and it wont effectively exist. the long humpy ones may be a problem.