Abuse the system wht to do?

[SLOW_V]

Here is my situation at work. I work on team of 4 people. We all work on silimar task. The team makes up of 1 director, 2-manager and myself. I don't report to the managers but to the director.
The director and one of the manager could work at home a few days a week. However, myself and the other manager can't do it. We are expected to commute daily. In the past, we asked the director for it but each time the idea gets shot down.
Lately, the manager who works at home gets sick, child gets sick, dog gets sick..she calls in that she will be working from home. At year end, they have a boat load of PTO to used due to company policy of use it or lose it. What itch me the last few days is that my manager (director) is on vacation all this week. The manager decides not to come into the office. When I tried to get a hold of her she doesn't pick up her cell phone. Or when I do get a hold of them. They are clearly not working but out somewhere.They are clearly abusing the system. Should I do something about it or let it go?