Canon should fix it, and might give you a loaner. Certainly, they are not going to give you $$$ for the loss of use. That is explicitly covered in the warranty.
There is no lemon law for cameras, but call and talk to a manager. Explain nicely and ask that your camera be replaced with a new one after failing to be repaired three times.
Nice to see the Mods cleaning up here.
Mt Spokane's Probably your best advice, I don't see Canon/Nikon etc giving Money out in these sort of situations, Your best bet is to work the issue up the chain of command and ask for the unit to be replaced.
I purchased the Canon 100f/2.8 Macro L II a while back, opened the Box and the Focus Rubber Grip was completely Loose, walked it back to the People I purchased it from, but ended up with Canon Singapore, discussed the issue with the Technical Manager, he authorised a New Replacement on the spot as it would have required a 6 week turn around return to Japan for repair.
Had an issue with focussing on the Nikon D800 when I owned it (the Big Issue), had it back to Nikon Singapore three times, they eventually replaced the Body with a New one, I promptly sold it as "Near New" & ate the small Loss.
You need perhaps to try and work your complaint above the technician level and get into a discussion with management, 3 times in for a straight forward initial issue, caused by Canon I might add, seems a damn poor response from any Canon service centre, I had both my own 1Dx Bodies into Canon Singapore for the Focus Motor Lubrication issue, returned in 2 days all good no issues, maybe try a different service centre that others here at CR are reporting good responses from, I don't know if that's possible though in your situation in the US.