Thanks for all the tips! Right after I posted the question, I found a deal with enterprise rent a car for all 9 days at just under 300 for an economy car including taxes and fees. It is at an off-site location that would require me to take a taxi from the airport but this seems completely worth it since I am in no big hurry and it would be saving me about 150 bucks.
This seems to go against some of the advice I have seen here, so let me know if you guys see any red flags here...thanks!