I've been struggling with this issue for the last 30 mins!
I built a restaurant and created a sim to own it/manage it. Everything was going fine/normal (I ran it for a few days to increase the rating), but then everyone (including staff) started wearing the dumb bags!
I recognized the sims eating at the restaurant who were wearing the bags (sims I play often) so I tried to change the voting in their neighborhood, but the bag thing wasn't even voted in (no bags to remove).
The sim who owned the restaurant--tried to see if HIS neighborhood had it activated. NOPE.
I tried to add a mailbox to the restaurant lot to vote it out, but it won't allow you to vote (even with the cheat to instantly remove or add things voted in) because it's not your home neighborhood.
I was going insane!
The neighborhood in question (with the stupid bag thing voted in) only had restaurants and a cafe... how was I supposed to change it? No sims were able to live there...
Well, I did the last logical thing I could think of which was to change the cafe into a residential lot (I was not about to destroy my restaurants that I worked so hard to have high ratings), have a sim move there, add a mailbox--since it's now a house, cheat to instantly repeal the bag thing (so stupid, imo) and then ta da! FIXED.
Then, I simply evicted the sim, went back to the cafe (which was still residential), changed it to a cafe lot again, and done! FIXED.
Not only do I hope this helps... I know it will! So go do it. Haha