There will be three memorial services at Houston, ample opportunity for all concerned to show their respect and say goodbye to Eric. There's no need to come up with some hokey time-out. As was the case when we lost Blaine and Darrell, the best way to honor Eric is for the race to go on and for the competitors to race as hard for the points as they would if all this was just a bad dream.
The legal ramifications of attempting to coerce the teams into foregoing the points would throw the entire championship into a legal snake pit - even if a team wanted to surrender their points, there's no provision in the rules for them to do so and if NHRA were to attempt to honor the gesture, the resulting legal hassle would tie the rest of the season up in uncertainty.
Just read the "record crowds" thread for another good reason this is a bad idea - thousands of fans have invested in tickets and travel and turning the event into a test session would make them unwilling participants in a meaningless event.