Vapor canister needs to be replaced

I have a 2008 Prius with approx 126k miles on it. Bought it used about 1.5 years ago.

Had an oil change at Firestone yesterday although I've been told this couldn't have caused this issue. This morning the check engine light came on. Checked the gas cap which seemed fine. I googled the problem and some of the things I read said if it was the gas cap problem and I had tightened it then the light would turn off after 3 cycles so I went ahead and drove it around locally for a total of 15 miles or so. I also read something online about someone who went to the gas station and filled up their tank and the light went off so I thought I'd try it. I had filled up the tank completely yesterday after my oil change but had driven about 60 miles so my fuel gauge was down one bar already. I went and filled up the tank to the point where the pump clicked. I didn't put in any more after the click and never have before. On my way home, I noticed that the gauge was not reading correcting - it stayed at 9 bars instead of increasing to 10 after I topped off the gas. Thus, at the advice of my brother, I took my car to Autozone to have them scan it. These are the following error codes it gave me:

P2401, P043E, P043F, P2402, P2419,

Autozone says the vapor canister has to be replaced and these are the two parts I need, both of which are found on their site:
Duralast Vapor Canister part VC4090 for $334.99
Duralast Vapor Canister part VC4398 for $195.99
[Apologies, I am so new to the forum I can't link yet.]

I suspect I could find these parts cheaper elsewhere from different brands but I'm unsure of how to go about finding them. The parts numbers Autozone provided are obviously specific to the particular brand they sell. Where can I find these parts online?

I also want to ask what the consequences would be of continuing to drive this car in this condition. Thoughts? Does anyone have any similar experiences or any wisdom to impart on me? Autozone told me that if I continued to drive it, it would basically eventually stop going and this could happen as soon as in a week or the car could last another month or so before it happens.

 

What would a valid DTC look like? The guy at Autozone told me these were dealer codes if I'm quoting him correctly.

Just checked the oil level and that's fine. All topped off.

 

Thanks for your help!
As it's getting late on Sunday and there's not much I can do about the codes at the moment, this is what Autozone provided me:

ASE Certified Master Technicians have seen this issue on your type of vehicle and the most likely solution is: Replace Evaporative Emissions Canister
Definition: Code P2401 indicates that with the engine running above a specified RPM the PCM detected an unexpected low voltage on the evaporative emission system leak detection pump control circuit.

Error Codes Read
P2401 - Evaporative Emission System Leak Detection Pump Control Circuit Low
P043E - Evaporative Emission System Reference Orifice Clog Up
P043F - Evaporative Emission System Reference Orifice High Flow
P2402 - Evaporative Emission System Leak Detection Pump Control Circuit High
P2419 - Evaporative Emission System Switching Valve Control Circuit Low

Can you make sense of any of that?

 

Thank you!! Much appreciated!

 

With this additional information, does this help anyone advise me on whether or not I should or shouldn't continue to drive my car?

 

That makes me feel better. Would this problem also affect the gas gauge not reading properly?

 

Just out of curiosity did you really think some bumps would possibly unstick the problem? Because the check engine light went off yesterday! Which I and my bank account are thrilled about but I'm also hoping it doesn't pop back up in a few days,