Check Engine Light EVAP LEAK (VERY SMALL LEAK) after tailpipe fell off

[YOUNG SCOOTER]

Lost the last section of the exhaust, right where the tailpipe bolts to the mid pipe by the rear passenger wheel well. Rust. I drove on it a couple weeks until I could get to the shop and have them fix it. I got a check engine light about a VERY SMALL evaporative emissions system leak. They deleted the code but it came back after a couple restarts and drives. The gas cap is tight, I redid it twice. Not sure if this is something to worry about.

Be aware this code came on literally as I was driving to the shop to get it welded back up, not after. For the 2 weeks prior I didn't get a CEL. Car is in good mechanical condition otherwise, I stay on top of maintenance well but Ive been working big overtime lately and didnt have time to fix it faster (construction industry)

2008 Yaris 2 door manual trans. 180k miles