cnl, morning..... I'm a little late here..... first off, your meat market guy is leading you astray.... fresh smoked to 150 is fine as long as it gets to 150 within 4 hours... Second, 150 does not kill botulism spores that may have developed during your 36 hour danger zone smoke... It takes about 240 deg to kill the spores.... pressure canner temps.....
Your friend got lucky, very lucky.... deliberately eating sausage that has been in the danger zone for that long, just because he has done it before, does not make for safe sausage..... All it takes is one contaminated link and call the doctor or mortuary....
Some folks do get lucky.... $30 worth of meat to gamble with a possible life threatening infection.....
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Not something anyone should do knowingly.... Just my opinion ..... Dave