At one time I had a generator that used a 5hp. briggs and stratton eng.  I removed the muffler,added a 6in. nipple,a 90 deg. elbow and a 10ft ft iron pipe. No exaust problems.  If needed you can make a bracket that bolts to the head of the eng. or use a "T"  post to hold it straight.  Now I just run an extention cord from the Gen. in the Motor Home. 

In regards to the Hosp. locking the gates after you escaped, You do have a Get Home Bag don't you 

Knowing you ,you probley do, but I must ask. 
