Since it's a pretty tall building, I don't think the firefighters could reach it with their hose to the top. What if it was really big and a fire extinguisher couldn't take it out? What would they do :/?
Keep the text message and if you think that he is the one breaking into your garage then go to the police and show them the text. Also you could set up a video recording device and catch him in the act. They are cheap, just go online to Harbor Freight, or Radio Shack. If the apartment management fixed the problem then how is he getting in anyway? Hey, another idea might be to move your car.
Please don't leave your fingers unattended. Seriously: Safety first.
I have been having the same issue with my 5yr old, although at 33 I do not pee the bed anymore. Some one suggested to me, to wake my son up before I go to bed (his bedtime is usually 7:30 - 8). I'm going to attempt this for the 1st time tonight. So I pass it along to you. Hopefully it will bring us both some success and a little less laundry!