Reddit mentions of Terro Liquid Ant Killer Baits(6 Bait Stations Net Contents 2.2fl.oz/0.36fl.oz)

Ant traps where some liquid or goo attracts them (ants have a strong sense of smell) and they get stuck is a thing. (See here) Congrats, you just created your own DIY ant trap! And simultaneously created a protein rich honey!

I would use Terro which is borax in a sugar solution.

https://www.amazon.com/dp/B00MYIS7YW/ref=asc_df_B00MYIS7YW5371011

It really is the best thing, though it takes a while. It's also basically nontoxic for humans and animals, so it's a great fit for you it sounds like.

BTW you can get this cheaper locally than on amazon, most likely.

These have killed my ant problem and several other friends' ant problems in the past. If you haven't tried these particular traps yet, I highly recommend.

Terro ant baits. I've never seen anything devastate a population of living things like Terro ant baits.

1. Notify maintenance anyway - costs you nothing.
   
2. Use Ant Bait in the future, not spray.
   

• You want them to carry the bait home with them to share it with others.
  
  This:
  https://www.amazon.com/Combat-Source-Kill-Killing-Grams/dp/B000BQT5IG
  
  Or this:
  https://www.amazon.com/Terro-Stations-Contents-2-2fl-oz-0-36fl-oz/dp/B00MYIS7YW
  
  Not this:
  https://www.amazon.com/Raid-11717-Ant-Roach-Killer/dp/B000BOCDXW
  
  
  Just remember you're paying what, like $10,000 for that dorm that you will only sleep in for 9 months or so, right?
  
  Pest control should be included in the housing agreement. You already paid for maintenance to take care of this - make them earn it.
  
  

Terro Liquid Ant Killer Baits( 6 Bait Stations Net Contents 2.2fl.oz/0.36fl.oz) https://www.amazon.com/dp/B00MYIS7YW/ref=cm_sw_r_cp_api_uaqHybWQANNX7

Those are the ready to go baits. You can also buy just the liquid and put it in a bottle cap or something.