ULPT Request Lied to professor about getting towed and now I need a AAA receipt.

Pretty self explanatory title. I wasn't able to make it to my midterm and so I did what every reasonable guy does and took some accountability and devoted myself to acing my final. Just kidding I told the professor my car exploded and I had to get towed a hundred miles on the way back to campus. The test was the day after spring break so the story checks out. I did a decent job lying and im taking the test later but hes expecting a receipt. Please help me im desperate.

EDIT: Thanks for all the advice fellas I got my plan of attack down. Also did pretty well on my exam I think. Hopefully this ends my career of petty forgery.

EDIT SQUARED: I got away with it :-)