cottage anti-freeze.... any health risks to exposure?

Sorry,I know this isn't directly related to wakeboarding.

Anyways, we're closing up our northern retreat this weekend. I plan to keep my boat in the water until closer to the end of October however. I'd like to be able to get up north for the odd day to squeeze in a couple more wakeboarding sets. When we close up our trailer, we put anti-freeze through all the lines, in the toilet, in the bathtub, and in the washing machine. Our trailer is 40 feet long... I'm not sure how wide. It may be something like 12-15 feet wide. Anyways, it'd be nice to be able to still goin inside the trailer in between wakeboard sets to chill out for a bit. I'm really not sure if this is safe though. You can smell the anti-freeze when you go in there. I'm not sure if sitting in there for a couple of hours would be dangerous to the health or not. I've asked a couple of people this question, and no one really thinks it would be a problem. I thought I would at least ask around and get a few more opinions on this.