[LeelandS]

As wireties said, a tipped robot will be left tipped for the rest of the match, unless it, or another robot, rights itself. I'm guessing the answer you're looking for is, no, the event staff (referees, field techs, etc.) will not right a fallen robot. That would be dangerous.

Intentionally tipping a robot is illegal and will incur fouls (the exact fouls escape my mind now), but accidental tipping is "okay" ("okay" meaning not penalized, though not necessarily a nice thing to do). I believe if it is noticed that a robot repeatedly tips other robots, they may be called for egregious behavior (a yellow card, or a red card for continued occurance).

Hope this helps,
Leeland