newborn and funeral

I lost my grandmother this past week very suddenly. Her funeral is the upcoming Tuesday at a church. I gave birth to my first child in February and Unfortunately, my grandmother never got a chance to meet her. She had been in and out of the hospital before I gave birth so she was waiting until I was able to bring her over as she couldn't leave her house. This is all very saddening to me and I find myself torn in regards to bringing my daughter to the funeral. She will be 2 months old next week but she has not had any of her vaccinations yet. I am extremely worried about her getting sick. I know she'll mostly

Sleep so I don't think she'd be disruptive. Now you may ask why I just don't get a sitter for her and here's why: all of my close family and friends will be at this service. The only possible solution I have is to leave her with my MIL who smokes in her house and is not careful with her. She's very rough and doesn't listen to any of my rules. I will be a nervous wreck the entire time. I know this may sound petty, but she will actually smoke and then refuse to wash or sanitize her hands. I've had to force her on numerous occasions. 

If you were in my position, would you take her, or leave her with MIL? I would likely bring her in a sling and have her nestled next to me so shes snug.