That's Bullsh=t. I was just told my left knee needs surgury to fix many years of abuse. I am in a leg brace that will not allow me to get in and out of the Camaro. Wife asked what if i was going to sell the Camaro. I said NO WAY. I bought a super clean 93 F150 XLT with 57K actual miles. I tricked it out with dual flowmasters, keyless alarm and some other goodies. I figure about 3 months before i can roll in the Camaro. She now sits in the Garage, freshly detailed and covered waiting for me. Where there is a will there is a way.
I suspect the OP could have traded for an auto Camaro to fix his issue or he could have bought an older automatic something to drive for a while. He bought a Mustang because he wanted a Mustang, and that's ok, but MAN UP and admit it.
Nothing bugs me more than someone who won't stand up and tell the truth as to why they make the decisions they make. That is why............. I call BULLSH=T.